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PDFTron React Native API

TypeScript

PDFTron React Native supports TypeScript. Since not all customers use the language, the typings used in this document will be described using normal JavaScript types. For TypeScript users, type information is automatically provided while coding, and exact type aliases and constants used in our custom typings can be found in AnnotOptions and Config source folders.

RNPdftron

RNPdftron contains static methods for global library initialization, configuration, and utility methods.

initialize

Initializes PDFTron SDK with your PDFTron commercial license key. You can run PDFTron in demo mode by passing an empty string.

Parameters:

Name Type Description
licenseKey string your PDFTron license key
RNPdftron.initialize('your_license_key');

enableJavaScript

Enables JavaScript for PDFTron SDK, by default it is enabled.

Parameters:

Name Type Description
enabled bool whether to enable or disable JavaScript
RNPdftron.enableJavaScript(true);

getVersion

Gets the current PDFNet version.

Returns a Promise.

Promise Parameters:

Name Type Description
version string current PDFNet version
RNPdftron.getVersion().then((version) => {
  console.log("Current PDFNet version:", version);
});

getPlatformVersion

Gets the version of current platform (Android/iOS).

Returns a Promise.

Promise Parameters:

Name Type Description
platformVersion string current platform version (Android/iOS)
RNPdftron.getPlatformVersion().then((platformVersion) => {
  console.log("App currently running on:", platformVersion);
});

getSystemFontList

Gets the font list available on the OS (Android only). This is typically useful when you are mostly working with non-ascii characters in the viewer.

Returns a Promise.

Promise Parameters:

Name Type Description
fontList string the font list available on Android
RNPdftron.getSystemFontList().then((fontList) => {
  console.log("OS font list:", fontList);
});

clearRubberStampCache

Clear the information and bitmap cache for rubber stamps (Android only). This is typically useful when the content of rubber stamps has been changed in the viewer.

Returns a promise.

RNPdftron.clearRubberStampCache().then(() => {
  console.log("Rubber stamp cache cleared");
});

clearSavedViewerState

Clear the saved view state such as page number, zoom location etc. (Android only). This is typically useful when DocumentView is in a sub-navigation component and state-saving is not desired across sessions.

Returns a promise.

RNPdftron.clearSavedViewerState().then(() => {
  console.log("Viewer state cleared");
});

encryptDocument

Encrypts (password-protect) a document (must be a PDF). Note: This function does not lock the document it cannot be used it while the document is opened in the viewer.

Parameters:

Name Type Description
file path string the local file path to the file
password string the password you would like to set
current password string the current password, use empty string if no password

Returns a promise.

Example:

RNPdftron.encryptDocument("/sdcard/Download/new.pdf", "1111", "").then(() => {
  console.log("done password");
});

pdfFromOffice

Generates a PDF from an Office document.

Parameters:

Name Type Description
docxPath string the local file path to the Office file

Optional Parameters:

Name Type Description
applyPageBreaksToSheet boolean Whether we should split Excel workheets into pages so that the output resembles print output.
displayChangeTracking boolean If this option is true, will display office change tracking markup present in the document (i.e, red strikethrough of deleted content and underlining of new content).
excelDefaultCellBorderWidth double Cell border width for table cells that would normally be drawn with no border.
excelMaxAllowedCellCount int Conversion will throw an exception if the number of cells in a Microsoft Excel document is above the set MaxAllowedCellCount.
locale string ISO 639-1 code of the current system locale. For example: 'en-US', 'ar-SA', 'de-DE', etc.

Returns a Promise.

Promise Parameters:

Name Type Description
resultPdfPath string the local file path to the generated PDF

The user is responsible for cleaning up the temporary file that is generated.

Example:

// With options
RNPdftron.pdfFromOffice("/sdcard/Download/red.xlsx", 
  {
    applyPageBreaksToSheet: true, 
    displayChangeTracking: true, 
    excelDefaultCellBorderWidth: 1, 
    excelMaxAllowedCellCount: 250000, 
    locale: 'en-US'
  })
.then((resultPdfPath) => {
  console.log(resultPdfPath);
});

// Without options
RNPdftron.pdfFromOffice("/sdcard/Download/red.xlsx", null).then((resultPdfPath) => {
  console.log(resultPdfPath);
});

pdfFromOfficeTemplate

Generates a PDF using a template in the form of an Office document and replacement data in the form of a JSON object. For more information please see our template guide.

Parameters:

Name Type Description
docxPath string the local file path to the template file
json object the replacement data in the form of a JSON object

Returns a Promise.

Promise Parameters:

Name Type Description
resultPdfPath string the local file path to the generated PDF

The user is responsible for cleaning up the temporary file that is generated.

Example:

RNPdftron.pdfFromOfficeTemplate("/sdcard/Download/red.docx", json).then((resultPdfPath) => {
  console.log(resultPdfPath);
});

exportAsImage

Export a PDF page to an image format defined in Config.ExportFormat.

Unlike DocumentView.exportAsImage, this method is static and should only be called before a DocumentView instance has been created or else unexpected behaviour can occur. This method also takes a local file path to the desired PDF.

Parameters:

Name Type Description
pageNumber int the page to be converted; if the value does not refer to a valid page number, the file path will be undefined
dpi double the output image resolution
exportFormat string one of Config.ExportFormat constants
filePath string local file path to pdf
transparent boolean (only relevant when exported as PNG) whether the background of the image is transparent or the color of the PDF page (typically white)

Returns a Promise.

Name Type Description
resultImagePath string the temp path of the created image, user is responsible for clean up the cache
RNPdftron.exportAsImage(1, 92, Config.ExportFormat.BMP, "/sdcard/Download/red.pdf", false).then((resultImagePath) => {
  console.log('export', resultImagePath);
});

DocumentView - Props

A React component for displaying documents of different types such as PDF, docx, pptx, xlsx and various image formats.

Open a Document

document

string, required

The path or url to the document.

Example:

<DocumentView
  document={'https://pdftron.s3.amazonaws.com/downloads/pl/PDFTRON_about.pdf'}
/>

source

string

The path or url to the document. Wonday compatibility API.

Example:

<DocumentView
  source={'https://pdftron.s3.amazonaws.com/downloads/pl/PDFTRON_about.pdf'}
/>

password

string, optional

The password of the document, if any.

Example:

<DocumentView
  password={'password'}
/>

isBase64String

bool, optional, defaults to false

If true, document prop will be treated as a base64 string. If it is not the base64 string of a pdf file, base64FileExtension is required.

When viewing a document initialized with a base64 string (i.e. a memory buffer), a temporary file is created on Android and iOS.

<DocumentView
  isBase64String={true}
  document={'...'} // base 64 string
/>

base64FileExtension

string, required if using base64 string of a non-pdf file, defaults to ".pdf"

The file extension for the base64 string in document, if isBase64String is true.

<DocumentView
  isBase64String={true}
  document={'...'} // base 64 string
  base64FileExtension={'.jpeg'}
/>

documentExtension

string, optional, defaults to the extension in the document prop.

Used for specifying the extension of the document to be loaded.

<DocumentView
  document={"https://pdftron.s3.amazonaws.com/pdfInDisguise.png"}
  documentExtension={"pdf"}
/>

customHeaders

object, optional

Defines custom headers to use with HTTP/HTTPS requests.

<DocumentView
  customHeaders={{headerKey: 'headerValue'}}
/>

readOnly

bool, optional, defaults to false

Defines whether the viewer is read-only. If true, the UI will not allow the user to change the document.

<DocumentView
  readOnly={true}
/>

defaultEraserType

one of the Config.EraserType constants, optional

Sets the default eraser tool type. Value only applied after a clean install.

Eraser Type Description
annotationEraser Erases everything as an object; if you touch ink, the entire object is erased.
hybrideEraser Erases ink by pixel, but erases other annotation types as objects.
inkEraser Erases ink by pixel only. Android only.
<DocumentView
  defaultEraserType={Config.EraserType.hybrideEraser}
/>

exportPath

string, optional

Sets the folder path for all save options, this defaults to the app cache path. Android only. Example:

<DocumentView
  exportPath="/data/data/com.example/cache/test"
/>

openUrlPath

string, optional

Sets the cache folder used to cache PDF files opened using a http/https link, this defaults to the app cache path. Android only. Example:

<DocumentView
  openUrlPath="/data/data/com.example/cache/test"
/>

saveStateEnabled

bool, optional, default to true

Sets whether to remember the last visited page and zoom for a document if it gets opened again.

On iOS this prop only applies to local documents and saves the last visited page. The zoom is not saved.

On Android the zoom and last visited page are saved for both local and remote documents.

Example:

<DocumentView
  saveStateEnabled={false}
/>

openSavedCopyInNewTab

bool, optional, default to true, Android only.

Sets whether the new saved file should open after saving. Example:

<DocumentView
  openSavedCopyInNewTab={false}
/>

onDocumentLoaded

function, optional

This function is called when the document finishes loading.

Parameters:

Name Type Description
path string File path that the document has been saved to
<DocumentView
  onDocumentLoaded = {(path) => { 
    console.log('The document has finished loading:', path); 
  }}
/>

onLoadComplete

function, optional

This function is called when the document finishes loading.

Parameters:

Name Type Description
path string File path that the document has been saved to
<DocumentView
  onLoadComplete = {(path) => { 
    console.log('The document has finished loading:', path); 
  }}
/>

onDocumentError

function, optional

This function is called when document opening encounters an error.

Parameters:

Name Type Description
error string Error message produced
<DocumentView
  onDocumentError = {(error) => { 
    console.log('Error occured during document opening:', error); 
  }}
/>

onError

function, optional

This function is called when document opening encounters an error.

Parameters:

Name Type Description
error string Error message produced
<DocumentView
  onError = {(error) => { 
    console.log('Error occured during document opening:', error); 
  }}
/>

UI Customization

disabledElements

array of Config.Buttons constants, optional, defaults to none

Defines buttons to be disabled for the viewer.

<DocumentView
  disabledElements={[Config.Buttons.userBookmarkListButton]}
/>

disabledTools

array of Config.Tools constants, optional, defaults to none

Defines tools to be disabled for the viewer.

<DocumentView
  disabledTools={[Config.Tools.annotationCreateLine, Config.Tools.annotationCreateRectangle]}
/>

onToolChanged

function, optional

This function is called when the current tool changes to a new tool

Parameters:

Name Type Description
previousTool string the previous tool (one of the Config.Tools constants or "unknown tool"), representing the tool before change
tool string the current tool (one of the Config.Tools constants or "unknown tool"), representing the current tool
<DocumentView
  onToolChanged = {({previousTool, tool}) => {
    console.log('Tool has been changed from', previousTool, 'to', tool);
  }}
/>

rememberLastUsedTool

boolean, optional, defaults to true, Android only

Defines whether the last tool used in the current viewer session will be the tool selected upon starting a new viewer session.

Example:

<DocumentView
  rememberLastUsedTool={false}
/>

leadingNavButtonIcon

string, optional

The file name of the icon to be used for the leading navigation button. The button will use the specified icon if it is valid, and the default icon otherwise.

Example:

<DocumentView
  leadingNavButtonIcon={Platform.OS === 'ios' ? 'ic_close_black_24px.png' : 'ic_arrow_back_white_24dp'}
/>

Note: to add the image file to your application, please follow the steps below:

Android
  1. Add the image resource to the drawable directory in example/android/app/src/main/res. For details about supported file types and potential compression, check out here.

demo-android

  1. Now you can use the image in the viewer. For example, if you add button_close.png to drawable, you could use 'button_close' in leadingNavButtonIcon.
iOS
  1. After pods has been installed, open the .xcworkspace file for this application in Xcode (in this case, it's example.xcworkspace), and navigate through the list below. This would allow you to add resources, in this case, an image, to your project.
  • "Project navigator"
  • "example" (or the app name)
  • "Build Phases"
  • "Copy Bundle Resources"
  • "+".

demo-ios

  1. Now you can use the image in the viewer. For example, if you add button_open.png to the bundle, you could use 'button_open.png' in leadingNavButtonIcon.

showLeadingNavButton

bool, optional, defaults to true

Defines whether to show the leading navigation button.

<DocumentView
  showLeadingNavButton={true}
/>

onLeadingNavButtonPressed

function, optional

This function is called when the leading navigation button is pressed.

<DocumentView
  onLeadingNavButtonPressed = {() => {
    console.log('The leading nav has been pressed');
  }}
/>

overflowMenuButtonIcon

String, optional

The file name of the icon to be used as the overflow menu button. The button will use the specified icon if it is valid, and the default icon otherwise.

Note: to add the image file to your application, follow the steps under the Note section of leadingNavButtonIcon.

Example:

<DocumentView
  overflowMenuButtonIcon={Platform.OS === 'ios' ? 'ic_close_black_24px.png' : 'ic_arrow_back_white_24dp'}
/>

documentSliderEnabled

bool, optional, defaults to true

Defines whether the document slider of the viewer is enabled.

<DocumentView
  documentSliderEnabled={false}
/>

hideViewModeItems

array of Config.ViewModePickerItem constants, optional, defaults to none.

Defines view mode items to be hidden in the view mode dialog.

<DocumentView
  hideViewModeItems={[
    Config.ViewModePickerItem.Crop,
    Config.ViewModePickerItem.Rotation,
    Config.ViewModePickerItem.ColorMode,
    Config.ViewModePickerItem.ReaderModeSettings,
  ]}
/>

tabletLayoutEnabled

bool, optional, defaults to true

Defines whether the tablet layout should be used on tablets. Otherwise uses the same layout as phones. Android only.

<DocumentView
  tabletLayoutEnabled={true}
/>

downloadDialogEnabled

bool, optional, defaults to true

Defines whether the download dialog should be shown. Android only.

<DocumentView
  downloadDialogEnabled={true}
/>

Toolbar Customization

topToolbarEnabled

bool, optional, defaults to true

Deprecated. Use hideTopAppNavBar prop instead.

bottomToolbarEnabled

bool, optional, defaults to true

Defines whether the bottom toolbar of the viewer is enabled.

<DocumentView
  bottomToolbarEnabled={false}
/>

hidePresetBar

bool, optional, defaults to false

Defines whether preset bar is hidden or not

<DocumentView
  hidePresetBar={true}
/>

annotationToolbars

array of Config.DefaultToolbars constants or custom toolbar objects, optional, defaults to none

Defines custom toolbars. If passed in, the default toolbars will no longer appear. When indicating the icon of a custom toolbar item, ensure that the resource for either Android or iOS exists. It is possible to mix and match with default toolbars. See example below:

const myToolItem = {
  [Config.CustomToolItemKey.Id]: 'add_page',
  [Config.CustomToolItemKey.Name]: 'Add page',
  // An example of custom Android icon:
  [Config.CustomToolItemKey.Icon]: 'ic_add_blank_page_white', 
  // An example of custom iOS icon:
  //[Config.CustomToolItemKey.Icon]: 'pencil.circle', 
};

const myToolbar = {
  [Config.CustomToolbarKey.Id]: 'myToolbar',
  [Config.CustomToolbarKey.Name]: 'myToolbar',
  [Config.CustomToolbarKey.Icon]: Config.ToolbarIcons.FillAndSign,
  [Config.CustomToolbarKey.Items]: [Config.Tools.annotationCreateArrow, Config.Tools.annotationCreateCallout, myToolItem, Config.Buttons.undo]
};

<DocumentView
  annotationToolbars={[Config.DefaultToolbars.Annotate, myToolbar]}
/>

onCurrentToolbarChanged

function, optional

This function is called when the current toolbar has changed.

Parameters:

Name Type Description
toolbar string The current toolbar. One of the Config.DefaultToolbars constants or the id of a custom toolbar object.
<DocumentView
  onCurrentToolbarChanged = {({toolbar}) => {
    console.log('toolbar changed to: ' + toolbar);
  }}
/>

onAnnotationToolbarItemPress

function, optional

This function is called when a custom toolbar tool item is clicked

Parameters:

Name Type Description
id string the Config.CustomToolItemKey.Id defined in the tool
<DocumentView
  onAnnotationToolbarItemPress = {({id}) => {
    console.log('toolbar item press: ' + id);
  }}
/>

hideDefaultAnnotationToolbars

array of Config.DefaultToolbars constants, optional, defaults to none

Defines which default annotation toolbars should be hidden. Note that this prop should be used when annotationToolbars is not defined.

<DocumentView
  hideDefaultAnnotationToolbars={[Config.DefaultToolbars.Annotate, Config.DefaultToolbars.Favorite]}
/>

hideThumbnailsViewItems

array of Config.ThumbnailsViewItem constants, optional, defaults to none

Defines which default thumbnail view items should be hidden. Note: InsertFromPhoto item is for iOS only On Android, photo and camera are both included in InsertFromImage

<DocumentView
  hideThumbnailsViewItems={[Config.ThumbnailsViewItem.InsertPages, Config.ThumbnailsViewItem.ExportPages]}
/>

hideAnnotationToolbarSwitcher

bool, optional, defaults to false

Defines whether to show the toolbar switcher in the top toolbar.

<DocumentView
  hideAnnotationToolbarSwitcher={false}
/>

initialToolbar

one of the Config.DefaultToolbars constants or the id of a custom toolbar object, optional, defaults to none

Defines which annotationToolbar should be selected when the document is opened.

<DocumentView
  initialToolbar={Config.DefaultToolbars.Draw}
/>

hideTopToolbars

bool, optional, defaults to false

Defines whether to hide both the top app nav bar and the annotation toolbar.

<DocumentView
  hideTopToolbars={false}
/>

hideTopAppNavBar

bool, optional, defaults to false

Defines whether to hide the top navigation app bar.

<DocumentView
  hideTopAppNavBar={true}
/>

hideToolbarsOnTap

bool, optional, defaults to true

Defines whether an unhandled tap in the viewer should toggle the visibility of the top and bottom toolbars. When false, the top and bottom toolbar visibility will not be toggled and the page content will fit between the bars, if any.

<DocumentView
  hideToolbarsOnTap={false}
/>

hideToolbarsOnAppear

bool, optional, defaults to false, android only

Defines whether the toolbars will be gone at startup.

Android

<DocumentView
  hideToolbarsOnAppear={true}
/>

topAppNavBarRightBar

array of Config.Buttons constants, optional, only the tabs, search, view mode, thumbnails, outline, undo, share, reflow, edit pages, save copy, print, file attachment, layers, digital signatures and close buttons are supported on Android

Customizes the right bar section of the top app nav bar. If passed in, the default right bar section will not be used.

<DocumentView
  topAppNavBarRightBar={[Config.Buttons.reflowButton, Config.Buttons.outlineListButton]}
/>

bottomToolbar

array of Config.Buttons constants, optional, only the outline list, thumbnail list, share, view mode, search, and reflow buttons are supported on Android

Defines a custom bottom toolbar. If passed in, the default bottom toolbar will not be used.

<DocumentView
  bottomToolbar={[Config.Buttons.reflowButton, Config.Buttons.outlineListButton]}
/>

padStatusBar

bool, optional, defaults to false, android only

Defines whether the viewer will add padding to take account of the system status bar.

<DocumentView
  padStatusBar={true}
/>

overrideToolbarButtonBehavior

array of Config.Buttons constants, optional, defaults to none

Defines the option buttons in the top app nav bar or the bottom toolbar that will skip default behavior when pressed. They will still be displayed in the toolbar, and the function onToolbarButtonPress will be called where custom behavior can be implemented.

<DocumentView
  overrideToolbarButtonBehavior={[Config.Buttons.shareButton, Config.Buttons.searchButton]}
  onToolbarButtonPress={({id}) => {
    if (id === Config.Buttons.shareButton) {
      console.log('Share button pressed');
    } else if (id === Config.Buttons.searchButton) {
      console.log('Search button pressed');
    }
  }}
/>

onToolbarButtonPress

function, optional

This function is called when a toolbar item passed in to overrideToolbarButtonBehavior is pressed.

Parameters:

Name Type Description
id string one of Config.Buttons constants representing the item that has been pressed
<DocumentView
  overrideToolbarButtonBehavior={[Config.Buttons.shareButton, Config.Buttons.searchButton]}
  onToolbarButtonPress={({id}) => {
    if (id === Config.Buttons.shareButton) {
      console.log('Share button pressed');
    } else if (id === Config.Buttons.searchButton) {
      console.log('Search button pressed');
    }
  }}
/>

Layout

fitMode

one of the Config.FitMode constants, optional, default value is Config.FitMode.FitWidth

Defines the fit mode (default zoom level) of the viewer.

<DocumentView
  fitMode={Config.FitMode.FitPage}
/>

fitPolicy

Defines the fit mode (default zoom level) of the viewer. Parameters:

Mode Value Description
fitPage (default) 0 fits the whole page
fit width 1 fits page using width
fit hieght 2 fits page using height
<DocumentView
  fitPolicy={2}
/>

layoutMode

one of the Config.LayoutMode constants, optional, default value is Config.LayoutMode.Continuous

Defines the layout mode of the viewer.

<DocumentView
  layoutMode={Config.LayoutMode.FacingContinuous}
/>

onLayoutChanged

function, optional

This function is called when the layout of the viewer has been changed.

<DocumentView
  onLayoutChanged = {() => {
    console.log('Layout has been updated.');
  }}
/>

Page

initialPageNumber

number, optional

Defines the initial page number that viewer displays when the document is opened. Note that page numbers are 1-indexed.

<DocumentView
  initialPageNumber={5}
/>

page

number, optional

Defines the initial page number that viewer displays when the document is opened. Note that page numbers are 1-indexed.

<DocumentView
  page={5}
/>

pageNumber

number, optional

Defines the currently displayed page number. Different from initialPageNumber, changing this prop value at runtime will change the page accordingly.

<DocumentView
  pageNumber={5}
/>

pageChangeOnTap

bool, optional, defaults to true

Defines whether the viewer should change pages when the user taps the edge of a page, when the viewer is in a horizontal viewing mode.

<DocumentView
  pageChangeOnTap={true}
/>

pageIndicatorEnabled

bool, optional, defaults to true

Defines whether to show the page indicator for the viewer.

<DocumentView
  pageIndicatorEnabled={true}
/>

keyboardShortcutsEnabled

bool, optional, defaults to true

Defines whether the keyboard shortcuts of the viewer are enabled.

<DocumentView
  keyboardShortcutsEnabled={false}
/>

onPageChanged

function, optional

This function is called when the page number has been changed.

Parameters:

Name Type Description
previousPageNumber int the previous page number
pageNumber int the current page number
<DocumentView
  onPageChanged = {({previousPageNumber, pageNumber}) => {
    console.log('Page number changes from', previousPageNumber, 'to', pageNumber);
  }}
/>

onPageMoved

function, optional

This function is called when a page has been moved in the document.

Parameters:

Name Type Description
previousPageNumber int the previous page number
pageNumber int the current page number
<DocumentView
  onPageMoved = {({previousPageNumber, pageNumber}) => {
    console.log('Page moved from', previousPageNumber, 'to', pageNumber);
  }}
/>

onPagesAdded

function, optional

This function is called when pages are added to the document.

Parameters:

Name Type Description
pageNumbers array An array of the page numbers that were added to the document
<DocumentView
  onPagesAdded = {({pageNumbers}) => {
    console.log('Pages added:', pageNumbers);
  }}
/>

onPagesRotated

function, optional

This function is called when pages are rotated.

Parameters:

Name Type Description
pageNumbers array An array of the page numbers that were rotated
<DocumentView
  onPagesRotated = {({pageNumbers}) => {
    console.log('Pages rotated:', pageNumbers);
  }}
/>

onPagesRemoved

function, optional

This function is called when pages are removed from the document.

Parameters:

Name Type Description
pageNumbers array An array of the page numbers that were removed from the document
<DocumentView
  onPagesRemoved = {({pageNumbers}) => {
    console.log('Pages removed:', pageNumbers);
  }}
/>

Zoom

zoom

double, optional

This prop defines the zoom of the document

<DocumentView
  zoom={2.0}
/>

scale

double, optional

This prop defines the zoom of the document. Same as zoom. Wonday compatibility API.

<DocumentView
  scale={2.0}
/>

onZoomChanged

function, optional

This function is called when the zoom scale has been changed.

Parameters:

Name Type Description
zoom double the current zoom ratio of the document
<DocumentView
  onZoomChanged = {(zoom) => {
    console.log('Current zoom ratio is', zoom);
  }}
/>

onScaleChanged

function, optional

This function is called when the zoom scale has been changed.

Parameters:

Name Type Description
zoom double the current zoom ratio of the document
<DocumentView
  onScaleChanged = {(scale) => {
    console.log('Current scale ratio is', scale);
  }}
/>

onZoomFinished

function, optional

This function is called when a zooming has been finished. For example, if zoom via gesture, this is called on gesture release.

Parameters:

Name Type Description
zoom double the current zoom ratio of the document
<DocumentView
  onZoomFinished = {(zoom) => {
    console.log('Current zoom ratio is', zoom);
  }}

Scroll

horizontalScrollPos

number, optional

Defines the horizontal scroll position in the current document viewer.

<DocumentView
  horizontalScrollPos={50}
/>

verticalScrollPos

number, optional

Defines the vertical scroll position in the current document viewer.

<DocumentView
  verticalScrollPos={50}
/>

onScrollChanged

function, optional

This function is called when the scroll position has been changed.

Parameters:

Name Type Description
horizontal number the horizontal position of the scroll
vertical number the vertical position of the scroll
<DocumentView
  onScrollChanged = {({horizontal, vertical}) => {
    console.log('Current scroll position is', horizontal, 'horizontally, and', vertical, 'vertically.');
  }}

hideScrollbars

bool, optional, iOS only, defaults to false

Determines whether scrollbars will be hidden on the viewer.

<DocumentView
  hideScrollbars={true}
/>

Reflow

imageInReflowEnabled

bool, optional, defaults to true, will be available on iOS in version 9.1.2 and greater

Whether to show images in reflow mode.

<DocumentView
  imageInReflowEnabled={false}
/>

reflowOrientation

one of the Config.ReflowOrientation constants, optional, defaults to the viewer's scroll direction.

Sets the scrolling direction of the reflow control.

<DocumentView
  reflowOrientation={Config.ReflowOrientation.Vertical} 
/>

Annotation Menu

hideAnnotationMenu

array of Config.Tools constants, optional, defaults to none

Defines annotation types that will not show in the annotation (long-press) menu.

<DocumentView
  hideAnnotationMenu={[Config.Tools.annotationCreateArrow, Config.Tools.annotationEraserTool]}
/>

annotationMenuItems

array of Config.AnnotationMenu constants, optional, default contains all the items

Defines the menu items that can show when an annotation is selected.

<DocumentView
  annotationMenuItems={[Config.AnnotationMenu.search, Config.AnnotationMenu.share]}
/>

overrideAnnotationMenuBehavior

array of Config.AnnotationMenu constants, optional, defaults to none

Defines the menu items that will skip default behavior when pressed. They will still be displayed in the annotation menu, and the function onAnnotationMenuPress will be called where custom behavior can be implemented.

<DocumentView
  overrideAnnotationMenuBehavior={[Config.AnnotationMenu.copy]}
/>

onAnnotationMenuPress

function, optional

This function is called when an annotation menu item passed in to overrideAnnotationMenuBehavior is pressed.

Parameters:

Name Type Description
annotationMenu string One of Config.AnnotationMenu constants, representing which item has been pressed
annotations array An array of {id: string, pageNumber: number, type: string, screenRect: object, pageRect: object} objects.

id is the annotation identifier and type is one of the Config.Tools constants. screenRect was formerly called rect. Both rects are represented with {x1: number, y1: number, x2: number, y2: number, width: number, height: number} objects.
<DocumentView
  onAnnotationMenuPress = {({annotationMenu, annotations}) => {
    console.log('Annotation menu item', annotationMenu, 'has been pressed');
    annotations.forEach(annotation => {
      console.log('The id of selected annotation is', annotation.id);
      console.log('The page number of selected annotation is', annotation.pageNumber);
      console.log('The type of selected annotation is', annotation.type);
      console.log('The screenRect of selected annotation is', annotation.screenRect);
      console.log('The pageRect of selected annotation is', annotation.pageRect);
    });
  }}
/>

Long Press Menu

longPressMenuEnabled

bool, optional, defaults to true

Defines whether to show the popup menu of options when the user long presses on text or blank space on the document.

<DocumentView
  longPressMenuEnabled={true}
/>

longPressMenuItems

array of Config.LongPressMenu constants, optional, default contains all the items

Defines menu items that can show when long press on text or blank space.

<DocumentView
  longPressMenuItems={[Config.LongPressMenu.copy, Config.LongPressMenu.read]}
/>

overrideLongPressMenuBehavior

array of Config.LongPressMenu constants, optional, defaults to none

Defines the menu items on long press that will skip default behavior when pressed. They will still be displayed in the long press menu, and the function onLongPressMenuPress will be called where custom behavior can be implemented.

<DocumentView
  overrideLongPressMenuBehavior={[Config.LongPressMenu.search]}
/>

onLongPressMenuPress

function, optional

This function is called if the pressed long press menu item is passed in to overrideLongPressMenuBehavior

Parameters:

Name Type Description
longPressMenu string One of Config.LongPressMenu constants, representing which item has been pressed
longPressText string the selected text if pressed on text, empty otherwise
<DocumentView
  onLongPressMenuPress = {({longPressMenu, longPressText}) => {
    console.log('Long press menu item', longPressMenu, 'has been pressed');
    if (longPressText !== '') {
      console.log('The selected text is', longPressText);
    }
  }}
/>

Custom Behavior

overrideBehavior

array of Config.Actions constants, optional, defaults to none

Defines actions that will skip default behavior, such as external link click. The function onBehaviorActivated will be called where custom behavior can be implemented, whenever the defined actions occur.

<DocumentView
  overrideBehavior={[Config.Actions.linkPress]}
/>

onBehaviorActivated

function, optional

This function is called if the activated behavior is passed in to overrideBehavior

Parameters:

Name Type Description
action string One of Config.Actions constants, representing which action has been activated
data object A JSON object that varies depending on the action

Data param table:

Action Data param
Config.Actions.linkPress {url: string}
Config.Actions.stickyNoteShowPopUp {id: string, pageNumber: number, type: string, screenRect: {x1: number, y1: number, x2: number, y2: number, width: number, height: number}, pageRect: {x1: number, y1: number, x2: number, y2: number, width: number, height: number}}. Type is one of the Config.Tools constants. screenRect was formerly called rect.
<DocumentView
  onBehaviorActivated = {({action, data}) => {
    console.log('Activated action is', action);
    if (action === Config.Actions.linkPress) {
      console.log('The external link pressed is', data.url);
    } else if (action === Config.Actions.stickyNoteShowPopUp) {
      console.log('Sticky note has been activated, but it would not show a pop up window.');
    }
  }}
/>

Multi-tab

multiTabEnabled

bool, optional, defaults to false

Defines whether viewer will use tabs in order to have more than one document open simultaneously (like a web browser). Changing the document prop value will cause a new tab to be opened with the associated file.

<DocumentView
  multiTabEnabled={true}
/>

tabTitle

string, optional, default is the file name

Set the tab title if multiTabEnabled is true.

<DocumentView
  multiTabEnabled={true}
  tabTitle={'tab1'}
/>

maxTabCount

number, optional, defaults to unlimited

Sets the limit on the maximum number of tabs that the viewer could have at a time. Open more documents after reaching this limit will overwrite the old tabs.

<DocumentView
  multiTabEnabled={true}
  maxTabCount={5}
/>

onTabChanged

function, optional

The function is activated when a tab is changed.

Please note that this API is meant for tab-specific changes. If you would like to know when the document finishes loading instead, see the onDocumentLoaded event.

Parameters:

Name Type Description
currentTab string The file path of current tab's document
<DocumentView
  multiTabEnabled={true}
  onTabChanged={({currentTab}) => {
    console.log("The current tab is ", currentTab);
  }}
/>

Collaboration

collabEnabled

bool, optional, defaults to false

Defines whether to enable realtime collaboration. If true then currentUser must be set as well for collaboration mode to work. Feature set may vary between local and collaboration mode.

<DocumentView
  collabEnabled={true}
  currentUser={'Pdftron'}
/>

currentUser

string, required if collabEnabled is set to true

Defines the current user. Created annotations will have their title (author) set to this string.

<DocumentView
  collabEnabled={true}
  currentUser={'Pdftron'}
/>

currentUserName

string, optional

Defines the current user name. Will set the user name only if collabEnabled is true and currentUser is defined. This should be used only if you want the user's display name to be different than the annotation's title/author (in the case that currentUser is an ID rather than a human-friendly name.)

<DocumentView
  collabEnabled={true}
  currentUser={'Pdftron'}
  currentUserName={'Hello_World'}
/>

annotationManagerEditMode

one of the Config.AnnotationManagerEditMode constants, optional, default value is Config.AnnotationManagerEditMode.Own

Sets annotation manager edit mode when collabEnabled is true.

Mode Description
Config.AnnotationManagerEditMode.Own In this mode, you can edit only your own changes
Config.AnnotationManagerEditMode.All In this mode, you can edit everyone's changes
<DocumentView
  collabEnabled={true}
  currentUser={'Pdftron'}
  annotationManagerEditMode={Config.AnnotationManagerEditMode.All}
/>

annotationManagerUndoMode

one of the Config.AnnotationManagerUndoMode constants, optional, default value is Config.AnnotationManagerUndoMode.Own

Sets annotation manager undo mode when collabEnabled is true.

Mode Description
Config.AnnotationManagerUndoMode.Own In this mode, you can undo only your own changes
Config.AnnotationManagerUndoMode.All In this mode, you can undo everyone's changes
<DocumentView
  collabEnabled={true}
  currentUser={'Pdftron'}
  annotationManagerUndoMode={Config.AnnotationManagerUndoMode.All}
/>

replyReviewStateEnabled

boolean, optional, defaults to true

Defines whether to show an annotation's reply review state.

<DocumentView
  collabEnabled={true}
  currentUser={'Pdftron'}
  replyReviewStateEnabled={true}
/>

Annotations

annotationPermissionCheckEnabled

bool, optional, defaults to false

Defines whether an annotation's permission flags will be respected when it is selected. For example, a locked annotation can not be resized or moved.

<DocumentView
  annotationPermissionCheckEnabled={true}
/>

annotationAuthor

string, optional

Defines the author name for all annotations created on the current document. Exported xfdfCommand will include this piece of information.

<DocumentView
  annotationAuthor={'PDFTron'}
/>

continuousAnnotationEditing

bool, optional, defaults to true

If true, the active annotation creation tool will remain in the current annotation creation tool. Otherwise, it will revert to the "pan tool" after an annotation is created.

<DocumentView
  continuousAnnotationEditing={true}
/>

inkMultiStrokeEnabled

bool, optional, defaults to true

If true, ink tool will use multi-stroke mode. Otherwise, each stroke is a new ink annotation.

<DocumentView
  inkMultiStrokeEnabled={true}
/>

selectAnnotationAfterCreation

bool, optional, defaults to true

Defines whether an annotation is selected after it is created. On iOS, this functions for shape and text markup annotations only.

<DocumentView
  selectAnnotationAfterCreation={true}
/>

onExportAnnotationCommand

function, optional

This function is called if a change has been made to annotations in the current document. Unlike onAnnotationChanged, this function has an XFDF command string as its parameter. If you are modifying or deleting multiple annotations, then on Android the function is only called once, and on iOS it is called for each annotation.

Parameters:

Name Type Description
action string the action that occurred (add, delete, modify, undo, redo)
xfdfCommand string an xfdf string containing info about the edit
annotations array an array of annotation data. When collaboration is enabled data comes in the format {id: string}, otherwise the format is {id: string, pageNumber: number, type: string}. In both cases, the data represents the annotations that have been changed. type is one of the Config.Tools constants
<DocumentView
  onExportAnnotationCommand = {({action, xfdfCommand, annotations}) => {
    console.log('Annotation edit action is', action);
    console.log('The exported xfdfCommand is', xfdfCommand);
    annotations.forEach((annotation) => {
      console.log('Annotation id is', annotation.id);
      if (!this.state.collabEnabled) {
        console.log('Annotation pageNumber is', annotation.pageNumber);
        console.log('Annotation type is', annotation.type);
      }
    });
  }}
  collabEnabled={this.state.collabEnabled}
  currentUser={'Pdftron'}
/>

onAnnotationsSelected

function, optional

This function is called when an annotation(s) is selected.

Parameters:

Name Type Description
annotations array array of annotation data in the format {id: string, pageNumber: number, type: string, screenRect: {x1: number, y1: number, x2: number, y2: number, width: number, height: number}, pageRect: {x1: number, y1: number, x2: number, y2: number, width: number, height: number}}, representing the selected annotations. Type is one of the Config.Tools constants. screenRect was formerly called rect.
<DocumentView
  onAnnotationsSelected = {({annotations}) => {
    annotations.forEach(annotation => {
      console.log('The id of selected annotation is', annotation.id);
      console.log('It is in page', annotation.pageNumber);
      console.log('Its type is', annotation.type);
    });
  }}
/>

onAnnotationChanged

function, optional

This function is called if a change has been made to an annotation(s) in the current document.

Note: When an annotation is flattened, it also gets deleted, so both onAnnotationChanged and onAnnotationFlattened are called.

Parameters:

Name Type Description
action string the action that occurred (add, delete, modify)
annotations array array of annotation data in the format {id: string, pageNumber: number, type: string}, representing the annotations that have been changed. type is one of the Config.Tools constants
<DocumentView
  onAnnotationChanged = {({action, annotations}) => {
    console.log('Annotation edit action is', action);
    annotations.forEach(annotation => {
      console.log('The id of changed annotation is', annotation.id);
      console.log('It is in page', annotation.pageNumber);
      console.log('Its type is', annotation.type);
    });
  }}
/>

onAnnotationFlattened

function, optional

This function is called if an annotation(s) has been flattened in the current document.

Parameters:

Name Type Description
annotations array array of annotation data in the format {id: string, pageNumber: number, type: string}, representing the annotations that have been changed. type is one of the Config.Tools constants. ids returned via the event listener can be null.
<DocumentView
  onAnnotationFlattened={({annotations}) => {
    annotations.forEach(annotation => {
      console.log('The id of changed annotation is', annotation.id);
      console.log('It is in page', annotation.pageNumber);
      console.log('Its type is', annotation.type);
    });
  }}
/>

onFormFieldValueChanged

function, optional

This function is called if a change has been made to form field values. Additionally signatures type fields will have the fieldHasAppearance value defined. The hasAppearance indicates whether the signature field was signed or not

Parameters:

Name Type Description
fields array array of field data in the format {fieldName: string, fieldType: string, fieldValue: any, fieldHasAppearance: boolean}, representing the fields that have been changed
<DocumentView
  onFormFieldValueChanged = {({fields}) => {
    fields.forEach(field => {
      console.log('The name of the changed field is', field.fieldName);
      console.log('The type of the changed field is', field.fieldType);
      console.log('The value of the changed field is', field.fieldValue);
      console.log('The hasAppearance of the changed field is', field.fieldHasAppearance);
    });
  }}
/>

annotationsListEditingEnabled

bool, optional, default value is true

If document editing is enabled, then this value determines if the annotation list is editable.

<DocumentView
  annotationsListEditingEnabled={true}
/>

disableEditingByAnnotationType

array of Config.Tools constants, optional, defaults to none.

Defines annotation types that cannot be edited after creation.

<DocumentView
  disableEditingByAnnotationType={[Config.Tools.annotationCreateTextSquiggly, Config.Tools.annotationCreateEllipse]}
/>

highlighterSmoothingEnabled

bool, optional, default to true, Android only.

Sets whether the pdf should have highlighter smoothing. Example

<DocumentView
  highlighterSmoothingEnabled={false}
/>

excludedAnnotationListTypes

array of Config.Tools constants, optional, defaults to none

Defines types to be excluded from the annotation list. Example use:

<DocumentView
  excludedAnnotationListTypes={[Config.Tools.annotationCreateEllipse, Config.Tools.annotationCreateRectangle, Config.Tools.annotationCreateRedaction]}
/>

Bookmark

onBookmarkChanged

function, optional

This function is called if a change has been made to user bookmarks.

Parameters:

Name Type Description
bookmarkJson string the list of current bookmarks in JSON format
<DocumentView
  onBookmarkChanged = {({bookmarkJson}) => {
    console.log('Bookmarks have been changed. Current bookmark collection is', bookmarkJson);
  }}
/>

userBookmarksListEditingEnabled

bool, optional, default value is true

Defines whether the bookmark list can be edited. If the viewer is readonly then bookmarks on Android are still editable but are saved to the device rather than the PDF.

<DocumentView
  userBookmarksListEditingEnabled={true}
/>

Signature

signSignatureFieldsWithStamps

bool, optional, defaults to false

Defines whether signature fields will be signed with image stamps. This is useful if you are saving XFDF to remote source.

<DocumentView
  signSignatureFieldsWithStamps={true}
/>

showSavedSignatures

bool, optional, defaults to true

Defines whether to show saved signatures for re-use when using the signing tool.

<DocumentView
  showSavedSignatures={true}
/>

storeNewSignature

bool, optional, defaults to true.

Defines whether to store new signatures when using the signing tool.

<DocumentView
  storeNewSignature={true}
/>

maxSignatureCount

number, optional

Defines the maximum number of signatures you can create for a document.

<DocumentView
  maxSignatureCount={3}
/>

photoPickerEnabled

bool, optional, defaults to true. Android only.

Defines whether to show the option to pick images in the signature dialog.

<DocumentView
  photoPickerEnabled={true}
/>

signatureColors

array of objects containing keys red, green, and blue, optional

The colors that the user can select to create a signature. Maximum of three colors.

On Android, when this config is set, the user will not be able to customize each color shown. Defaults to black, blue, green for Android, and black, blue, red for iOS.

<DocumentView
  signatureColors={[
    { 'red': 255, 'green': 0, 'blue': 0 },
    { 'red':   0, 'green': 0, 'blue': 0 },
  ]}
/>

onSavedSignaturesChanged

function, optional

This function is called when the number of saved signatures has been changed (added or deleted).

<DocumentView
  onSavedSignaturesChanged={() => {
    console.log('Number of saved signatures changed');
  }}
/>

Thumbnail Browser

hideThumbnailFilterModes

array of Config.ThumbnailFilterMode constants, optional

Defines filter modes that should be hidden in the thumbnails browser.

<DocumentView
  hideThumbnailFilterModes={[Config.ThumbnailFilterMode.Annotated]}
/>

thumbnailViewEditingEnabled

bool, optional, defaults to true

Defines whether user can modify the document using the thumbnail view (eg add/remove/rotate pages).

<DocumentView
  thumbnailViewEditingEnabled={true}
/>

Text Selection

onTextSearchStart

function, optional

This function is called immediately before a text search begins, either through user actions, or function calls such as findText.

<DocumentView
  onTextSearchStart = {() => {
    console.log('Text search has started');
  }}
/>

onTextSearchResult

function, optional

This function is called after a text search is finished or canceled.

Parameters:

Name Type Description
found bool whether a result is found. If no, it could be caused by not finding a matching result in the document, invalid text input, or action cancellation (user actions or cancelFindText)
textSelection object the text selection, in the format {html: string, unicode: string, pageNumber: number, quads: [[{x: number, y: number}, {x: number, y: number}, {x: number, y: number}, {x: number, y: number}], ...]}. If no such selection could be found, this would be null

quads indicate the quad boundary boxes for the selection, which could have a size larger than 1 if selection spans across different lines. Each quad have 4 points with x, y coordinates specified in number, representing a boundary box. The 4 points are in counter-clockwise order, though the first point is not guaranteed to be on lower-left relatively to the box.

<DocumentView
  onTextSearchResult = {({found, textSelection}) => {
    if (found) {
      console.log('Found selection on page', textSelection.pageNumber);
      for (let i = 0; i < textSelection.quads.length; i ++) {
        const quad = textSelection.quads[i];
        console.log('selection boundary quad', i);
        for (const quadPoint of quad) {
          console.log('A quad point has coordinates', quadPoint.x, quadPoint.y);
        }
      }
    }
  }}
/>

Others

enableAntialiasing

bool, optional

Define whether antialiasing should be applied. It is enabled by default

<DocumentView
  enableAntialiasing={true}
/>

useStylusAsPen

bool, optional, defaults to true

Defines whether a stylus should act as a pen when in pan mode. If false, it will act as a finger.

<DocumentView
  useStylusAsPen={true}
/>

followSystemDarkMode

bool, optional, Android and iOS 13+ only, defaults to true

Defines whether the UI will appear in a dark color when the system is dark mode. If false, it will use viewer setting instead.

<DocumentView
  followSystemDarkMode={false}
/>

autoSaveEnabled

bool, optional, defaults to true

Defines whether document is automatically saved by the viewer.

<DocumentView
  autoSaveEnabled={true}
/>

autoResizeFreeTextEnabled

bool, optional, defaults to false

Defines whether to automatically resize the bounding box of free text annotations when editing.

<DocumentView
  autoResizeFreeTextEnabled={true}
/>

restrictDownloadUsage

bool, optional, defaults to false

Defines whether to restrict data usage when viewing online PDFs.

<DocumentView
  restrictDownloadUsage={true}
/>

Navigation

pageStackEnabled

bool, optional, defaults to true, Android only

Deprecated. Use the showQuickNavigationButton prop instead.

Defines whether the page stack navigation buttons will appear in the viewer.

<DocumentView
  pageStackEnabled={false}
/>

showQuickNavigationButton

bool, optional, defaults to true

Defines whether the quick navigation buttons will appear in the viewer.

<DocumentView
  showQuickNavigationButton={false}
/>

showNavigationListAsSidePanelOnLargeDevices

bool, optional, defaults to true on Android and false on iOS

Defines whether the navigation list will be displayed as a side panel on large devices such as iPads and tablets.

<DocumentView
  showNavigationListAsSidePanelOnLargeDevices={true}
/>

onUndoRedoStateChanged

function, optional

This function is called when the state of the current document's undo/redo stack has been changed.

<DocumentView
  onUndoRedoStateChanged = {() => { 
    console.log("Undo/redo stack state changed");
  }}
/>

DocumentView - Methods

Document

getDocumentPath

Returns the path of the current document. If isBase64String is true, this would be the path to the temporary pdf file converted from the base64 string in document.

Returns a Promise.

Promise Parameters:

Name Type Description
path string the document path
this._viewer.getDocumentPath().then((path) => {
  console.log('The path to current document is: ' + path);
});

saveDocument

Saves the current document. If isBase64String is true, this would be the base64 string encoded from the temporary pdf file, which is created from the base64 string in document.

Returns a Promise.

Promise Parameters:

Name Type Description
filePath string the location of the saved document, or the base64 string of the pdf in the case of base64
this._viewer.saveDocument().then((filePath) => {
  console.log('saveDocument:', filePath);
});

UI Customization

setColorPostProcessMode

Sets the color post processing transformation mode for the viewer.

Parameters:

Name Type Description
colorPostProcessMode string color post processing transformation mode, should be a Config.ColorPostProcessMode constant
this._viewer.setColorPostProcessMode(Config.ColorPostProcessMode.NightMode);

setColorPostProcessColors

Sets the white and black color for the color post processing transformation.

Parameters:

Name Type Description
whiteColor object the white color for the color post processing transformation, in the format {red: number, green: number, blue: number}. alpha could be optionally included (only Android would apply alpha), and all numbers should be in range [0, 255]
blackColor object the black color for the color post processing transformation, in the same format as whiteColor
const whiteColor = {"red": 0, "green": 0, "blue": 255};
const blackColor = {"red": 255, "green": 0, "blue": 0};
this._viewer.setColorPostProcessColors(whiteColor, blackColor);

Annotation Tools

setToolMode

Sets the current tool mode.

Returns a Promise.

Parameters:

Name Type Description
toolMode string One of Config.Tools constants, representing to tool mode to set
this._viewer.setToolMode(Config.Tools.annotationCreateFreeHand).then(() => {
  // done switching tools
});

commitTool

Commits the current tool, only available for multi-stroke ink and poly-shape.

Returns a Promise.

Promise Parameters:

Name Type Description
committed bool true if either ink or poly-shape tool is committed, false otherwise
this._viewer.commitTool().then((committed) => {
  // committed: true if either ink or poly-shape tool is committed, false otherwise
});

setAnnotationToolbarItemEnabled

Sets the annotation toolbar item corresponding to the given string key enabled/disabled.

Returns a Promise.

Parameters:

Name Type Description
itemId string one of the constants defined in Config.Tools or the Config.CustomToolItemKey.Id defined in a custom tool item object
enable boolean whether to enable or disable the item
this._viewer
  .setAnnotationToolbarItemEnabled(
    Config.Tools.annotationCreateSignature,
    false,
  )
  .then(() => {
    console.log('disabled');
  });

Page

getPageCount

Gets the current page count of the document.

Returns a Promise.

Promise Parameters:

Name Type Description
pageCount int the current page count of the document
this._viewer.getPageCount().then((pageCount) => {
  console.log('pageCount', pageCount);
});

setCurrentPage

Sets current page of the document.

Parameters:

Name Type Description
pageNumber integer the page number to be set as the current page; 1-indexed

Returns a Promise.

Promise Parameters:

Name Type Description
success bool whether the setting process was successful
this._viewer.setCurrentPage(4).then((success) => {
  if (success) {
    console.log("Current page is set to 4.");
  }
});

getAllFields

function, optional

This method gets all the fields for a particular page. If no page number is passed the method gets the Fields for all the pages. Additionally if a field of type signature is present it will have a hasAppearance which is a boolean to represent whether a signature field was signed. The hasAppearance field will be undefined for all other fields except signature.

Parameters:

Name Type Description
pageNumber integer the page number to be set as the current page; 1-indexed

Returns a Promise.

Promise Parameters:

Name Type Description
fields array array of field data in the format {fieldName: string, fieldType: string, fieldValue: any,fieldHasAppearance: boolean}, representing the fields that have been changed
  this._viewer.getAllFields(1).then((fields) => {
      fields.forEach(field => {
        console.log('The name of the  field is', field.fieldName);
        console.log('The type of the  field is', field.fieldType);
        console.log('The value of the field is', field.fieldValue);
        console.log('The hasAppearance of the field is', field.fieldHasAppearance);
      });
    });

gotoPreviousPage

Go to the previous page of the document. If on first page, it would stay on first page.

Returns a Promise.

Promise Parameters:

Name Type Description
success bool whether the setting process was successful (no change due to staying in first page counts as being successful)
this._viewer.gotoPreviousPage().then((success) => {
  if (success) {
    console.log("Go to previous page.");
  }
});

gotoNextPage

Go to the next page of the document. If on last page, it would stay on last page.

Returns a Promise.

Promise Parameters:

Name Type Description
success bool whether the setting process was successful (no change due to staying in last page counts as being successful)
this._viewer.gotoNextPage().then((success) => {
  if (success) {
    console.log("Go to next page.");
  }
});

gotoFirstPage

Go to the first page of the document.

Returns a Promise.

Promise Parameters:

Name Type Description
success bool whether the setting process was successful
this._viewer.gotoFirstPage().then((success) => {
  if (success) {
    console.log("Go to first page.");
  }
});

gotoLastPage

Go to the last page of the document.

Returns a Promise.

Promise Parameters:

Name Type Description
success bool whether the setting process was successful
this._viewer.gotoLastPage().then((success) => {
  if (success) {
    console.log("Go to last page.");
  }
});

showGoToPageView

Opens a go-to page dialog. If the user inputs a valid page number into the dialog, the viewer will go to that page.

Returns a Promise.

this._viewer.showGoToPageView();

getPageCropBox

Gets the crop box for specified page as a JSON object.

Parameters:

Name Type Description
pageNumber integer the page number for the target crop box. It is 1-indexed

Returns a Promise.

Promise Parameters:

Name Type Description
cropBox object an object with information about position (x1, y1, x2 and y2) and size (width and height)
this._viewer.getPageCropBox(1).then((cropBox) => {
  console.log('bottom-left coordinate:', cropBox.x1, cropBox.y1);
  console.log('top-right coordinate:', cropBox.x2, cropBox.y2);
  console.log('width and height:', cropBox.width, cropBox.height);
});

getVisiblePages

Gets the visible pages in the current viewer as an array.

Returns a Promise.

Promise Parameters:

Name Type Description
visiblePages array a list of visible pages in the current viewer
this._viewer.getVisiblePages().then((visiblePages) => {
  for (const page of visiblePages) {
    console.log('page', page, 'is visible.')
  }
});

getPageRotation

Gets the rotation value of all pages in the current document.

Returns a Promise.

Promise Parameters:

Name Type Description
pageRotation number the rotation degree of all pages, one of 0, 90, 180 or 270 (clockwise).
this._viewer.getPageRotation().then((pageRotation) => {
  console.log('The current page rotation degree is' + pageRotation);
});

rotateClockwise

Rotates all pages in the current document in clockwise direction (by 90 degrees).

Returns a Promise.

this._viewer.rotateClockwise();

rotateCounterClockwise

Rotates all pages in the current document in counter-clockwise direction (by 90 degrees).

Returns a Promise.

this._viewer.rotateCounterClockwise();

showRotateDialog

Displays a rotate dialog. Android only.

The dialog allows users to rotate pages of the opened document by 90, 180 and 270 degrees. It also displays a thumbnail of the current page at the selected rotation angle.

Returns a Promise.

this._viewer.showRotateDialog();

Import/Export Annotations

importAnnotationCommand

Imports remote annotation command to local document. Can be used in both local and collaboration mode.

Parameters:

Name Type Description
xfdfCommand string the XFDF command string
initialLoad bool whether this is for initial load. Will be false by default

Returns a Promise.

const xfdfCommand = '<?xml version="1.0" encoding="UTF-8"?><xfdf xmlns="http://ns.adobe.com/xfdf/" xml:space="preserve"><add><circle style="solid" width="5" color="#E44234" opacity="1" creationdate="D:20201218025606Z" flags="print" date="D:20201218025606Z" name="9d0f2d63-a0cc-4f06-b786-58178c4bd2b1" page="0" rect="56.4793,584.496,208.849,739.369" title="PDF" /></add><modify /><delete /><pdf-info import-version="3" version="2" xmlns="http://www.pdftron.com/pdfinfo" /></xfdf>';
this._viewer.importAnnotationCommand(xfdfCommand);

importAnnotations

Imports XFDF annotation string to the current document. Can be used in both local and collaboration mode.

Parameters:

Name Type Description
xfdf string annotation string in XFDF format for import
replace boolean whether to replace existing form and annotation data with those imported from the XFDF string (Android only)

Returns a Promise. Promise Parameters:

Name Type Description
importedAnnotations Array A list of Annotation object that contain id and pageNumber as members
const xfdf = '<?xml version="1.0" encoding="UTF-8"?>\n<xfdf xmlns="http://ns.adobe.com/xfdf/" xml:space="preserve">\n\t<add>\n\t\t<circle style="solid" width="5" color="#E44234" opacity="1" creationdate="D:20220406184336Z" flags="print" date="D:20220406184336Z" name="ca1165b2-5cd3-43f7-adcd-ff1ad13bceeb" page="1" rect="277.088,681.657,334.525,737.238" title="" />\n\t</add>\n\t<modify />\n\t<delete />\n\t<pdf-info import-version="4" version="2" xmlns="http://www.pdftron.com/pdfinfo" />\n</xfdf>';
this._viewer.importAnnotations(xfdf).then((importedAnnotations)=>{
        importedAnnotations.forEach((annotation) => {
          console.log("id: " + annotation.id);
          console.log("pageNumber: " + annotation.pageNumber);
        }) 
      });

exportAnnotations

Extracts XFDF from the current document.

Parameters:

Name Type Description
options object key: annotList, type: array. If specified, annotations with the matching id and pageNumber will be exported; otherwise, all annotations in the current document will be exported.

Returns a Promise.

Promise Parameters:

Name Type Description
xfdf string annotation string in XFDF format

Without options:

this._viewer.exportAnnotations().then((xfdf) => {
  console.log('XFDF for all annotations:', xfdf);
});

With options:

// annotList is an array of annotation data in the format {id: string, pageNumber: int}
const annotations = [{id: 'annot1', pageNumber: 1}, {id: 'annot2', pageNumber: 3}];
this._viewer.exportAnnotations({annotList: annotations}).then((xfdf) => {
  console.log('XFDF for 2 specified annotations', xfdf);
});

Annotations

flattenAnnotations

Flattens the forms and (optionally) annotations in the current document.

Parameters:

Name Type Description
formsOnly bool Defines whether only forms are flattened. If false, all annotations will be flattened

Returns a Promise.

// flatten forms and annotations in the current document.
this._viewer.flattenAnnotations(false);

deleteAnnotations

Deletes the specified annotations in the current document.

Parameters:

Name Type Description
annotations array Defines which annotation to be deleted. Each element is in the format {id: string, pageNumber: int}

Returns a Promise.

// delete annotations in the current document.
this._viewer.deleteAnnotations([
    {
        id: 'annotId1',
        pageNumber: 1,
    },
    {
        id: 'annotId2',
        pageNumber: 2,
    }
]);

selectAnnotation

Selects the specified annotation in the current document.

Parameters:

Name Type Description
id string the id of the target annotation
pageNumber integer the page number where the targe annotation is located. It is 1-indexed

Returns a Promise.

// select annotation in the current document.
this._viewer.selectAnnotation('annotId1', 1);

setFlagsForAnnotations

Sets flags for specified annotations in the current document. The flagValue controls whether a flag will be set to or removed from the annotation.

Note: the old function setFlagForAnnotations is deprecated. Please use this one.

Parameters:

Name Type Description
annotationFlagList array A list of annotation flag operations. Each element is in the format {id: string, pageNumber: int, flag: One of Config.AnnotationFlags constants, flagValue: bool}

Returns a Promise.

//  Set flag for annotations in the current document.
this._viewer.setFlagsForAnnotations([
    {
        id: 'annotId1',
        pageNumber: 1,
        flag: Config.AnnotationFlags.noView,
        flagValue: true
    },
    {
        id: 'annotId2',
        pageNumber: 5,
        flag: Config.AnnotationFlags.lockedContents,
        flagValue: false
    }
]);

setPropertiesForAnnotation

Sets properties for specified annotation in the current document, if it is valid.

Note: the old function setPropertyForAnnotation is deprecated. Please use this one.

Parameters:

Name Type Description
annotationId string the unique id of the annotation
pageNumber integer the page number where annotation is located. It is 1-indexed
propertyMap object an object containing properties to be set. Available properties are listed below

Properties in propertyMap:

Name Type Markup exclusive Example
rect object no {x1: 1, y1: 2, x2: 3, y2: 4}
contents string no "contents"
subject string yes "subject"
title string yes "title"
contentRect object yes {x1: 1, y1: 2, x2: 3, y2: 4}
customData object no {key: value}
strokeColor object no {red: 255, green: 0, blue: 0}

Returns a promise.

// Set properties for annotation in the current document.
this._viewer.setPropertiesForAnnotation('Pdftron', 1, {
  rect: {
    x1: 1.1,    // left
    y1: 3,      // bottom
    x2: 100.9,  // right
    y2: 99.8    // top
  },
  contents: 'Hello World',
  subject: 'Sample',
  title: 'set-prop-for-annot',
  customData: {
    key1: 'value1',
    key2: 'value2',
    key3: 'value3'
  },
  strokeColor: {
    "red": 255,
    "green": 0,
    "blue": 0
  }
});

getPropertiesForAnnotation

Gets properties for specified annotation in the current document, if it is valid.

Parameters:

Name Type Description
annotationId string the unique id of the annotation
pageNumber integer the page number where annotation is located. It is 1-indexed

Available Properties:

Name Type Markup exclusive Example
rect object no {x1: 1, y1: 1, x2: 2, y2: 2, width: 1, height: 1}
contents string no "Contents"
subject string yes "Subject"
title string yes "Title"
contentRect object yes {x1: 1, y1: 1, x2: 2, y2: 2, width: 1, height: 1}
strokeColor object no {red: 255, green: 0, blue: 0}

Returns a promise.

Promise Parameters:

Name Type Description Example
propertyMap object the non-null properties of the annotation {contents: 'Contents', strokeColor: {red: 255, green: 0, blue: 0}, rect: {x1: 1, y1: 1, x2: 2, y2: 2, width: 1, height: 1}}
// Get properties for annotation in the current document.
this._viewer.getPropertiesForAnnotation('Pdftron', 1).then((properties) => {
  if (properties) {
    console.log('Properties for annotation: ', properties);
  }
})

setDrawAnnotations

Sets whether all annotations and forms should be rendered. This method affects the viewer and does not change the document.

Unlike setVisibilityForAnnotation, this method is used to show and hide all annotations and forms in the viewer.

Parameters:

Name Type Description
drawAnnotations bool whether all annotations and forms should be rendered

Returns a promise.

this._viewer.setDrawAnnotations(false);

setVisibilityForAnnotation

Sets visibility for specified annotation in the current document, if it is valid. Note that if drawAnnotations is set to false in the viewer, this function would not render the annotation even if visibility is true.

Parameters:

Name Type Description
annotationId string the unique id of the annotation
pageNumber integer the page number where annotation is located. It is 1-indexed
visibility bool whether the annotation should be visible

Returns a promise.

this._viewer.setVisibilityForAnnotation('Pdftron', 1, true);

setHighlightFields

Enables or disables highlighting form fields. It is disabled by default.

Parameters:

Name Type Description
highlightFields bool whether form fields should be highlighted
this._viewer.setHighlightFields(true);

getAnnotationAtPoint

Gets an annotation at the (x, y) position in screen coordinates, if any.

Parameters:

Name Type Description
x integer the x-coordinate of the point
y integer the y-coordinate of the point
distanceThreshold double maximum distance from the point (x, y) to the annotation for it to be considered a hit (in dp)
minimumLineWeight double For very thin lines, it is almost impossible to hit the actual line. This specifies a minimum line thickness (in screen coordinates) for the purpose of calculating whether a point is inside the annotation or not (in dp)

Returns a Promise.

Promise Parameters:

Name Type Description
annotation object the annotation found in the format of {id: string, pageNumber: number, type: string, screenRect: {x1: number, y1: number, x2: number, y2: number, width: number, height: number}, pageRect: {x1: number, y1: number, x2: number, y2: number, width: number, height: number}}. type is one of the Config.Tools constants. screenRect was formerly called rect.
this._viewer.getAnnotationAtPoint(167, 287, 100, 10).then((annotation) => {
  if (annotation) {
    console.log('Annotation found at point (167, 287) has id:', annotation.id);
  }
})

getAnnotationListAt

Gets the list of annotations at a given line in screen coordinates. Note that this is not an area selection. It should be used similar to getAnnotationAtPoint, except that this should be used when you want to get multiple annotations which are overlaying with each other.

Parameters:

Name Type Description
x1 integer the x-coordinate of an endpoint on the line
y1 integer the y-coordinate of an endpoint on the line
x2 integer the x-coordinate of the other endpoint on the line, usually used as a threshold
y2 integer the y-coordinate of the other endpoint on the line, usually used as a threshold

Returns a Promise.

Promise Parameters:

Name Type Description
annotations array list of annotations at the target line, each in the format of {id: string, pageNumber: number, type: string, screenRect: {x1: number, y1: number, x2: number, y2: number, width: number, height: number}, pageRect: {x1: number, y1: number, x2: number, y2: number, width: number, height: number}}. type is one of the Config.Tools constants. screenRect was formerly called rect.
this._viewer.getAnnotationListAt(0, 0, 200, 200).then((annotations) => {
  for (const annotation of annotations) {
    console.log('Annotation found at line has id:', annotation.id);
  }
})

getAnnotationsOnPage

Gets the list of annotations on a given page.

Parameters:

Name Type Description
pageNumber integer the page number where annotations are located. It is 1-indexed

Returns a Promise.

Promise Parameters:

Name Type Description
annotations array list of annotations on the target page, each in the format of {id: string, pageNumber: number, type: string, screenRect: {x1: number, y1: number, x2: number, y2: number, width: number, height: number}, pageRect: {x1: number, y1: number, x2: number, y2: number, width: number, height: number}}. type is one of the Config.Tools constants. screenRect was formerly called rect.
this._viewer.getAnnotationsOnPage(2).then((annotations) => {
  for (const annotation of annotations) {
    console.log('Annotation found on page 2 has id:', annotation.id);
  }
})

getCustomDataForAnnotation

Gets an annotation's customData property.

Parameters:

Name Type Description
annotationId string the unique id of the annotation
pageNumber integer the page number where annotation is located. It is 1-indexed
key string the unique key associated with the customData property

Returns a Promise.

Promise Parameters:

Name Type Description
value string the customData property associated with the given key
this._viewer.setPropertiesForAnnotation("annotation1", 2, {
  customData: {
    data: "Nice annotation"
  }
}).then(() => {
  this._viewer.getCustomDataForAnnotation("annotation1", 2, "data").then((value) => {
    console.log(value === "Nice annotation");
  })
})

setFlagForFields

Sets a field flag value on one or more form fields.

Parameters:

Name Type Description
fields array list of field names for which the flag should be set
flag int flag to be set. Number should be a Config.FieldFlags constant
value bool value to set for flag

Returns a Promise.

this._viewer.setFlagForFields(['First Name', 'Last Name'], Config.FieldFlags.ReadOnly, true);

setValuesForFields

Sets field values on one or more form fields.

Note: the old function setValueForFields is deprecated. Please use this one instead.

Parameters:

Name Type Description
fieldsMap object map of field names and values which should be set

Returns a Promise.

this._viewer.setValuesForFields({
  'textField1': 'Test',
  'textField2': 1234,
  'checkboxField1': true,
  'checkboxField2': false,
  'radioButton1': 'Yes',
  'radioButton2': 'No'
});

getField

Get type and value information of a field using its name.

Parameters:

Name Type Description
fieldName string name of the field

Returns a Promise.

Promise Parameters:

Name Type Description
field object an object with information key fieldName, fieldValue (undefined for fields with no values) and fieldType(one of button, checkbox, radio, text, choice, signature and unknown), or undefined if such field does not exist
this._viewer.getField('someFieldName').then((field) => {
  if (field !== undefined) {
    console.log('field name:', field.fieldName);
    console.log('field value:', field.fieldValue);
    console.log('field type:', field.fieldType);
  }
});

openAnnotationList

Displays the annotation tab of the existing list container. If this tab has been disabled, the method does nothing.

Returns a Promise.

this._viewer.openAnnotationList();

openThumbnailsView

Display a page thumbnails view.

This view allows users to navigate pages of a document. If thumbnailViewEditingEnabled is true, the user can also manipulate the document, including add, remove, re-arrange, rotate and duplicate pages.

Returns a Promise.

this._viewer.openThumbnailsView();

Toolbar

setCurrentToolbar

Sets the current annotationToolbar for the viewer.

Returns a Promise.

Parameters:

Name Type Description
toolbar string the toolbar to enable. Should be one of the Config.DefaultToolbars constants or the id of a custom toolbar object.
this._viewer.setCurrentToolbar(Config.DefaultToolbars.Insert).then(() => {
  // done switching toolbar
});

Navigation

handleBackButton

Handles the back button in search mode. Android only.

Returns a Promise.

Promise Parameters:

Name Type Description
handled bool whether the back button is handled successfully
this._viewer.handleBackButton().then((handled) => {
  if (!handled) {
    BackHandler.exitApp();
  }
});

Bookmark

importBookmarkJson

Imports user bookmarks into the document. The input needs to be a valid bookmark JSON format.

Parameters:

Name Type Description
bookmarkJson String needs to be in valid bookmark JSON format, for example {"0": "Page 1"}. The page numbers are 1-indexed

Returns a Promise.

this._viewer.importBookmarkJson("{\"0\": \"Page 1\", \"3\": \"Page 4\"}");

openBookmarkList

Displays the bookmark tab of the existing list container. If this tab has been disabled, the method does nothing.

Returns a Promise.

this._viewer.openBookmarkList();

Multi-tab

closeAllTabs

Closes all tabs in a multi-tab environment.

Returns a Promise.

// Do this only when DocumentView has multiTabEnabled = true
this._viewer.closeAllTabs();

openTabSwitcher

Opens the tab switcher in a multi-tab environment.

Returns a Promise.

// Do this only when DocumentView has multiTabEnabled = true
this._viewer.openTabSwitcher();

Zoom

getZoom

Returns the current zoom scale of current document viewer.

Returns a Promise.

Promise Parameters:

Name Type Description
zoom double current zoom scale in the viewer
this._viewer.getZoom().then((zoom) => {
  console.log('Zoom scale of the current document is:', zoom);
});

setZoomLimits

Sets the minimum and maximum zoom bounds of current viewer.

Parameters:

Name Type Description
zoomLimitMode String one of the constants in Config.ZoomLimitMode, defines whether bounds are relative to the standard zoom scale in the current viewer or absolute
minimum double the lower bound of the zoom limit range
maximum double the upper bound of the zoom limit range

Returns a Promise.

this._viewer.setZoomLimits(Config.ZoomLimitMode.Absolute, 1.0, 3.5);

zoomWithCenter

Sets the zoom scale in the current document viewer with a zoom center.

Parameters:

Name Type Description
zoom double the zoom ratio to be set
x int the x-coordinate of the zoom center
y int the y-coordinate of the zoom center

Returns a Promise.

this._viewer.zoomWithCenter(3.0, 100, 300);

zoomToRect

Zoom the viewer to a specific rectangular area in a page.

Parameters:

Name Type Description
pageNumber int the page number of the zooming area (1-indexed)
rect map The rectangular area with keys x1 (left), y1(bottom), y1(right), y2(top). Coordinates are in double

Returns a Promise.

this._viewer.zoomToRect(3, {'x1': 1.0, 'y1': 2.0, 'x2': 3.0, 'y2': 4.0});

smartZoom

Zoom to a paragraph that contains the specified coordinate. If no paragraph contains the coordinate, the zooming would not happen.

Parameters:

Name Type Description
x int the x-coordinate of the target coordinate
y int the y-coordinate of the target coordinate
animated bool whether the transition is animated

Returns a Promise.

this._viewer.smartZoom(100, 200, true);

Scroll

getScrollPos

Returns the horizontal and vertical scroll position of current document viewer.

Returns a Promise.

Promise Parameters:

Name Type Description
horizontal number current horizontal scroll position
vertical number current vertical scroll position
this._viewer.getScrollPos().then(({horizontal, vertical}) => {
  console.log('Current horizontal scroll position is:', horizontal);
  console.log('Current vertical scroll position is:', vertical);
});

Reflow

isReflowMode

Returns whether the viewer is currently in reflow mode.

Returns a Promise.

Promise Parameters:

Name Type Description
inReflow bool whether the viewer is in reflow mode
this._viewer.isReflowMode().then((inReflow) => {
  console.log(inReflow ? 'in reflow mode' : 'not in reflow mode');
});

toggleReflow

Allows the user to programmatically enter and exit reflow mode.

Returns a promise.

this._viewer.toggleReflow();

Canvas

getCanvasSize

Returns the canvas size of current document viewer.

Returns a Promise.

Promise Parameters:

Name Type Description
width number current width of canvas
height number current height of canvas
this._viewer.getCanvasSize().then(({width, height}) => {
  console.log('Current canvas width is:', width);
  console.log('Current canvas height is:', height);
});

Coordinate

convertPagePointsToScreenPoints

Converts points from page coordinates to screen coordinates in the viewer.

Parameters:

Name Type Description
points array list of points, each in the format {x: number, y: number}. You could optionally have a pageNumber: number in the object. Without specifying, the page system is referring to the current page

Returns a Promise.

Promise Parameters:

Name Type Description
convertedPoints array list of converted points in screen system, each in the format {x: number, y: number}. It would be empty if conversion is unsuccessful
// convert (50, 50) on current page and (100, 100) on page 1 from page system to screen system
this._viewer.convertPagePointsToScreenPoints([{x: 50, y: 50}, {x: 100, y:100, pageNumber: 1}]).then((convertedPoints) => {
  convertedPoints.forEach(point => {
    console.log(point);
  })
});

convertScreenPointsToPagePoints

Converts points from screen coordinates to page coordinates in the viewer.

Parameters:

Name Type Description
points array list of points, each in the format {x: number, y: number}. You could optionally have a pageNumber: number in the object. Without specifying, the page system is referring to the current page

Returns a Promise.

Promise Parameters:

Name Type Description
convertedPoints array list of converted points in page system, each in the format {x: number, y: number}. It would be empty if conversion is unsuccessful
// convert (50, 50) and (100, 100) from screen system to page system, on current page and page 1 respectively
this._viewer.convertScreenPointsToPagePoints([{x: 50, y: 50}, {x: 100, y:100, pageNumber: 1}]).then((convertedPoints) => {
  convertedPoints.forEach(point => {
    console.log(point);
  })
});

getPageNumberFromScreenPoint

Returns the page number that contains the point on screen.

Parameters:

Name Type Description
x number the x-coordinate of the screen point
y number the y-coordinate of the screen point

Returns a Promise.

Promise Parameters:

Name Type Description
pageNumber number the page number of the screen point
this._viewer.getPageNumberFromScreenPoint(10.0,50.5).then((pageNumber) => {
  console.log('The page number of the screen point is', pageNumber);
});

Rendering Options

setProgressiveRendering

Sets whether the control will render progressively or will just draw once the entire view has been rendered.

Parameters:

Name Type Description
progressiveRendering bool whether to render progressively
initialDelay number delay before the progressive rendering timer is started, in milliseconds
interval number delay between refreshes, in milliseconds

Returns a Promise.

// delay for 10s before start, and refresh every 1s
this._viewer.setProgressiveRendering(true, 10000, 1000);

setImageSmoothing

Enables or disables image smoothing. The rasterizer allows a trade-off between rendering quality and rendering speed. This function can be used to indicate the preference between rendering speed and quality.

Parameters:

Name Type Description
imageSmoothing bool whether to enable image smoothing

Returns a Promise.

this._viewer.setImageSmoothing(false);

setOverprint

Enables or disables support for overprint and overprint simulation. Overprint is a device dependent feature and the results will vary depending on the output color space and supported colorants (i.e. CMYK, CMYK+spot, RGB, etc).

Parameters:

Name Type Description
overprint string the mode of overprint, should be a Config.OverprintMode constant

Returns a Promise.

this._viewer.setOverprint(Config.OverprintMode.Off);

Viewer Options

setPageBorderVisibility

Sets whether borders of each page are visible in the viewer, which is disabled by default.

Parameters:

Name Type Description
pageBorderVisibility bool whether borders of each page are visible in the viewer
this._viewer.setPageBorderVisibility(true);

setPageTransparencyGrid

Enables or disables transparency grid (check board pattern) to reflect page transparency, which is disabled by default.

Parameters:

Name Type Description
pageTransparencyGrid bool whether to use the transparency grid
this._viewer.setPageTransparencyGrid(true);

setBackgroundColor

Sets the background color of the viewer.

Parameters:

Name Type Description
backgroundColor object the background color, in the format {red: number, green: number, blue: number}, each number in range [0, 255]
this._viewer.setBackgroundColor({red: 0, green: 0, blue: 255}); // blue color

setDefaultPageColor

Sets the default page color of the viewer.

Parameters:

Name Type Description
defaultPageColor object the default page color, in the format {red: number, green: number, blue: number}, each number in range [0, 255]
this._viewer.setDefaultPageColor({red: 0, green: 255, blue: 0}); // green color

Text Selection

startSearchMode

Search for a term and all matching results will be highlighted.

Returns a Promise.

Parameters:

Name Type Description
searchString string the text to search for
matchCase bool indicates if it is case sensitive
matchWholeWord bool indicates if it matches an entire word only
this._viewer.startSearchMode('PDFTron', false, false);

exitSearchMode

Finishes the current text search and remove all the highlights.

Returns a Promise.

this._viewer.exitSearchMode();

findText

Searches asynchronously, starting from the current page, for the given text. PDFViewCtrl automatically scrolls to the position so that the found text is visible.

Returns a Promise.

Parameters:

Name Type Description
searchString string the text to search for
matchCase bool indicates if it is case sensitive
matchWholeWord bool indicates if it matches an entire word only
searchUp bool indicates if it searches upward
regExp bool indicates if searchString is a regular expression
this._viewer.findText('PDFTron', false, false, true, false);

cancelFindText

Cancels the current text search thread, if exists.

Returns a Promise.

this._viewer.cancelFindText();

openSearch

Displays a search bar that allows the user to enter and search text within a document.

Returns a Promise.

this._viewer.openSearch();

getSelection

Returns the text selection on a given page, if any.

Parameters:

Name Type Description
pageNumber number the specified page number. It is 1-indexed

Returns a Promise.

Promise Parameters:

Name Type Description
selection object the text selection, in the format {html: string, unicode: string, pageNumber: number, quads: [[{x: number, y: number}, {x: number, y: number}, {x: number, y: number}, {x: number, y: number}], ...]}. If no such selection could be found, this would be null

quads indicate the quad boundary boxes for the selection, which could have a size larger than 1 if selection spans across different lines. Each quad have 4 points with x, y coordinates specified in number, representing a boundary box. The 4 points are in counter-clockwise order, though the first point is not guaranteed to be on lower-left relatively to the box.

this._viewer.getSelection(2).then((selection) => {
  if (selection) {
    console.log('Found selection on page', selection.pageNumber);
    for (let i = 0; i < selection.quads.length; i ++) {
      const quad = selection.quads[i];
      console.log('selection boundary quad', i);
      for (const quadPoint of quad) {
        console.log('A quad point has coordinates', quadPoint.x, quadPoint.y);
      }
    }
  }
});

hasSelection

Returns whether there is a text selection in the current document.

Returns a Promise.

Promise Parameters:

Name Type Description
hasSelection bool whether a text selection exists
this._viewer.hasSelection().then((hasSelection) => {
  console.log('There is a selection in the document.');
});

clearSelection

Clears any text selection in the current document.

Returns a Promise.

this._viewer.clearSelection();

getSelectionPageRange

Returns the page range (beginning and end) that has text selection on it.

Returns a Promise.

Promise Parameters:

Name Type Description
begin number the first page to have selection, -1 if there are no selections
end number the last page to have selection, -1 if there are no selections
this._viewer.getSelectionPageRange().then(({begin, end}) => {
  if (begin === -1) {
    console.log('There is no selection');
  } else {
    console.log('The selection range is from', begin, 'to', end);
  }
});

hasSelectionOnPage

Returns whether there is a text selection on the specified page in the current document.

Parameters:

Name Type Description
pageNumber number the specified page number. It is 1-indexed

Returns a Promise.

Promise Parameters:

Name Type Description
hasSelection bool whether a text selection exists on the specified page
this._viewer.hasSelectionOnPage(5).then((hasSelection) => {
  if (hasSelection) {
    console.log('There is a selection on page 5 in the document.');
  }
});

selectInRect

Selects the text within the given rectangle region.

Parameters:

Name Type Description
rect object the rectangle region in the format of x1: number, x2: number, y1: number, y2: number

Returns a Promise.

Promise Parameters:

Name Type Description
selected bool whether there is text selected
this._viewer.selectInRect({x1: 0, y1: 0, x2: 200.5, y2: 200.5}).then((selected) => {
        console.log(selected);
});

isThereTextInRect

Returns whether there is text in given rectangle region.

Parameters:

Name Type Description
rect object the rectangle region in the format of x1: number, x2: number, y1: number, y2: number

Returns a Promise.

Promise Parameters:

Name Type Description
hasText bool whether there is text in the region
this._viewer.isThereTextInRect({x1: 0, y1: 0, x2: 200, y2: 200}).then((hasText) => {
        console.log(hasText);
});

selectAll

Selects all text on the page.

Returns a Promise.

this._viewer.selectAll();

Undo/Redo

undo

Undo the last modification.

Returns a Promise.

this._viewer.undo();

redo

Redo the last modification.

Returns a Promise.

this._viewer.redo();

canUndo

Checks whether an undo operation can be performed from the current snapshot.

Returns a Promise.

Promise Parameters:

Name Type Description
canUndo bool whether it is possible to undo from the current snapshot
this._viewer.canUndo().then((canUndo) => {
  console.log(canUndo ? 'undo possible' : 'no action to undo');
});

canRedo

Checks whether a redo operation can be perfromed from the current snapshot.

Returns a Promise.

Promise Parameters:

Name Type Description
canRedo bool whether it is possible to redo from the current snapshot
this._viewer.canRedo().then((canRedo) => {
  console.log(canRedo ? 'redo possible' : 'no action to redo');
});

Signatures

getSavedSignatures

Gets a list of absolute file paths to PDFs containing the saved signatures.

Returns a Promise.

Promise Parameters:

Name Type Description
signatures array an array of string containing the absolute file paths; if there are no saved signatures, the value is an empty array
this._viewer.getSavedSignatures().then((signatures) => {
  if (signatures.length > 0) {
    signatures.forEach((signature) => {
      console.log(signature);
    });
  }
})

getSavedSignatureFolder

Retrieves the absolute file path to the folder containing the saved signature PDFs.

For Android, to get the folder containing the saved signature JPGs, use getSavedSignatureJpgFolder.

Returns a Promise.

Promise Parameters:

Name Type Description
path string the absolute file path to the folder
this._viewer.getSavedSignatureFolder().then((path) => {
  if (path != null) {
    console.log(path);
  }
})

getSavedSignatureJpgFolder

Retrieves the absolute file path to the folder containing the saved signature JPGs. Android only.

To get the folder containing the saved signature PDFs, use getSavedSignatureFolder.

Returns a Promise.

Promise Parameters:

Name Type Description
path string the absolute file path to the folder
this._viewer.getSavedSignatureJpgFolder().then((path) => {
  if (path != null) {
    console.log(path);
  }
})

Others

exportAsImage

Export a PDF page to an image format defined in Config.ExportFormat.

Unlike RNPdftron.exportAsImage, this is a viewer method and should only be called after the document has been loaded or else unexpected behaviour can occur. This method uses the PDF that is associated with the viewer, and does not take a local file path to the desired PDF.

Parameters:

Name Type Description
pageNumber int the page to be converted; if the value does not refer to a valid page number, the file path will be undefined
dpi double the output image resolution
exportFormat string one of the Config.ExportFormat constants
transparent boolean (only relevant when exported as PNG) whether the background of the image is transparent or opaque white

Returns a Promise.

Name Type Description
path string the temp path of the created image, user is responsible for clean up the cache
this._viewer.exportAsImage(1, 92, Config.ExportFormat.BMP, false).then((path) => {
  console.log('export', path);
});

showCrop

Displays the page crop option. Android only.

Returns a Promise.

this._viewer.showCrop();

openOutlineList

Displays the outline tab of the existing list container. If this tab has been disabled, the method does nothing.

Returns a Promise.

this._viewer.openOutlineList();

openLayersList

On Android it displays the layers dialog while on iOS it displays the layers tab of the existing list container. If this tab has been disabled or there are no layers in the document, the method does nothing.

Returns a Promise.

this._viewer.openLayersList();

openNavigationLists

Displays the existing list container. Its current tab will be the one last opened.

Returns a Promise.

this._viewer.openNavigationLists();

showViewSettings

Displays the view settings.

Requires a source rect in screen co-ordinates. On iOS this rect will be the anchor point for the view. The rect is ignored on Android.

Returns a Promise.

Parameters:

Name Type Description
rect map The rectangular area in screen co-ordinates with keys x1 (left), y1(bottom), y1(right), y2(top). Coordinates are in double format.
this._viewer.showViewSettings({'x1': 10.0, 'y1': 10.0, 'x2': 20.0, 'y2': 20.0});

showAddPagesView

Displays the add pages view.

Requires a source rect in screen co-ordinates. On iOS this rect will be the anchor point for the view. The rect is ignored on Android.

Returns a Promise.

Parameters:

Name Type Description
rect map The rectangular area in screen co-ordinates with keys x1 (left), y1(bottom), y1(right), y2(top). Coordinates are in double format.
this._viewer.showAddPagesView({'x1': 10.0, 'y1': 10.0, 'x2': 20.0, 'y2': 20.0});

shareCopy

Displays the share copy view.

Requires a source rect in screen co-ordinates. On iOS this rect will be the anchor point for the view. The rect is ignored on Android.

Returns a Promise.

Parameters:

Name Type Description
rect map The rectangular area in screen co-ordinates with keys x1 (left), y1(bottom), y1(right), y2(top). Coordinates are in double format.
flattening bool Whether the shared copy should be flattened before sharing.
this._viewer.shareCopy({'x1': 10.0, 'y1': 10.0, 'x2': 20.0, 'y2': 20.0}, true);

forceAppTheme

Forces application theme to either Config.ThemeOptions constants, optional

Requires followSystemDarkMode={false} in order for functionality of this prop

<DocumentView
  forceAppTheme={Config.ThemeOptions.ThemeDark}
/>

setFormFieldHighlightColor

Sets the form field's highlight color on the PDF.

Parameters:

Name Type Description
fieldHightlightColor object the form field highlight color, in the format {red: number, green: number, blue: number, alpha: number}, each number in range [0, 255]
this._viewer.setFormFieldHighlightColor({red: 0, green: 0, blue: 255, alpha: 128}); // blue color