It arise an error when the length of filename is less than 4. But the length of new file can be less than 4 in Korean version like "문서1".

[raymondyrhong]

It is due to below code. In my opinion it needs to check the existence of extension first.

https://github.com/plantuml/word-template/blob/master/module/PlantUML#L279

' documentId is the filename with its path, without extension
'
    documentId = ActiveDocument.Name
    documentId = Left(documentId, Len(documentId) - 4)