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https://issues.apache.org/jira/browse/PDFBOX-1822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13881308#comment-13881308
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Andreas Lehmkühler commented on PDFBOX-1822:
--------------------------------------------
I've followed Timos proposal and overhauled the detection of the correct XRef
type. I've added the changes in revision 1561111.
Can someone please check if it works now?
> Signature byte range is Invalid
> -------------------------------
>
> Key: PDFBOX-1822
> URL: https://issues.apache.org/jira/browse/PDFBOX-1822
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing, PDModel, PDModel.AcroForm, Signing
> Affects Versions: 1.8.3, 1.8.4, 2.0.0
> Reporter: vakhtang koroghlishvili
> Assignee: Andreas Lehmkühler
> Fix For: 1.8.4, 2.0.0
>
> Attachments:
> SignatureFileSet-PDFBOX-1.8.2_TO_1.8.4-SNAPSHOT_SEQ_AND_NONSEQ.zip,
> araxis-merge - compare two document.jpg, damaged-sig.jpg,
> unsigned-signed.pdf, unsigned.pdf, unsigned_signed_fix.pdf
>
>
> On person send me a unsigned PDF document. He wanted to sign it. When I try
> to sign it (using pad box), I have some problem.
> After signing adobe reader tells me "The signature byre range is invalid".
> I will attach original and signed document.
> I think, it is PDF box parser error. another signature libraries sign
> document very well. I'm searching the problem at the moment, in order to fix
> it.
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