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https://issues.apache.org/jira/browse/PDFBOX-5493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17580911#comment-17580911
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Tilman Hausherr commented on PDFBOX-5493:
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I can reproduce it. Your unsigned file is weird, its xref table is unusual. The
file has an xref table but the signed file has an XRef stream because of
{{hasHybridXRef}} in {{COSWriter.doWriteXRefInc()}}. Forcing an xref table
makes it work.
> Signature byte range is Invalid after singing
> ---------------------------------------------
>
> Key: PDFBOX-5493
> URL: https://issues.apache.org/jira/browse/PDFBOX-5493
> Project: PDFBox
> Issue Type: Bug
> Components: Signing
> Affects Versions: 3.0.0 PDFBox
> Reporter: Dmitry
> Priority: Blocker
> Attachments: doc.pdf, doc_signed.pdf
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> After signing pdf by PDFBOX Adobe reader tells me "{color:#ff0000}The
> signature byre range is invalid{color}".
> I will attach original and signed document.
> For signing i used example code.
> Initial pdf created by MS Word 2007 (2016 also bad) (save as PDF).
> Other pdfs works fine.
>
>
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