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https://issues.apache.org/jira/browse/PDFBOX-4651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16931217#comment-16931217
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Michael Klink commented on PDFBOX-4651:
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{quote}When i add the visual signature appearance in one page everything is
working fine.
But when i'm trying to add the visual signature appearance in all the pages i'm
getting following error in pdf file. {quote}
That sounds like you're doing something wrong when _trying to add the visual
signature appearance in all the pages_.
Actually one can argue that already attempting to do so is the error; ISO
32000-2 after all requires *signature fields shall never refer to more than one
annotation.* (There is a way to weasel out of this but that still clearly goes
against the intention of the authors of the specification.)
Most likely, though, there also is a bug in your code doing that. But without
that code one can hardly analyze it.
> Unexpected byte range values defining scope of signed data. Details: The
> signature byte range is invalid
> --------------------------------------------------------------------------------------------------------
>
> Key: PDFBOX-4651
> URL: https://issues.apache.org/jira/browse/PDFBOX-4651
> Project: PDFBox
> Issue Type: Bug
> Components: Signing
> Affects Versions: 2.0.10
> Reporter: Shashidhara
> Priority: Major
>
> I'm adding visual signature appearance in each page and after that hash i'm
> getting and sending to different server to get signature, which need to be
> added in pdf. So basically i'm working on external signature signing.
> When i add the visual signature appearance in one page everything is working
> fine.
> But when i'm trying to add the visual signature appearance in all the pages
> i'm getting following error in pdf file.
> *Unexpected byte range values defining scope of signed data.*
> *Details: The signature byte range is invalid*
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