Am Dienstag, dem 06.06.2023 um 11:47 +0000 schrieb
sven.neufe...@ruv.de:
>
>
>
> Heys guys,
>
> we're having an issue with some of our PDF documents that contains
> interactive fields like Radio Buttons. In some cases we’ve to merge
> PDF documents together (using the PDFMergerUtility) and when we try
> to print that merged document these Button elements are not rendered
> correctly, when using Apache PDFBox >= 2.0.22. Using the version
> 2.0.21 the buttons are rendered correctly.
How do you render the PDF? From which application?
BR
Maruan
>
> I’m pretty new in the world of how PDF files work under the hood and
> how the PDF structure and fields is defined in the standard. So I did
> some research and could find out the reason for this misbehavior.
>
> It looks like that issue had been introduced with this
> commit:https://github.com/apache/pdfbox/commit/fe00cd3870f6d9ec27fcb5
> 5c89409b420ade0826
>
> In the origin document (before entering the merge step)
> theNeedAppearances entry is set to true, but after the merge step the
> entry’s changed to be false.
> I could figure out that this line of code is the reason for
> that:https://github.com/apache/pdfbox/blob/fe00cd3870f6d9ec27fcb55c89
> 409b420ade0826/pdfbox/src/main/java/org/apache/pdfbox/pdmodel/fixup/p
> rocessor/AcroFormGenerateAppearancesProcessor.java#L55
>
> Is that an intended behaviour or is that an unintentionally
> sideeffect?
>
>
> Kind regards
>
> Sven Neufeind
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