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https://issues.apache.org/jira/browse/FOP-2854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16804002#comment-16804002
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Chris Bowditch commented on FOP-2854:
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Most people overcome this issue by loading the PDF using a library such as
PDFBox and comparing the parts of the PDF they care about
It's not only dates that change by object reference IDs and other data
structures within the PDF. I don't think this enhancement request is feasible
nor within scope of FOP, whose responsibility it is generate valid PDF, not
solve upstream problems in relation to comparison
> CreationDate in PDF metadata breaks reproducible builds
> -------------------------------------------------------
>
> Key: FOP-2854
> URL: https://issues.apache.org/jira/browse/FOP-2854
> Project: FOP
> Issue Type: Improvement
> Components: renderer/pdf
> Affects Versions: 2.3
> Environment: Debian GNU/Linux
> Reporter: Filippo Rusconi
> Priority: Major
>
> Greetings,
> I would like to report that the CreationDate value that is set in the PDF
> file changes at each run. This is problematic because that makes it
> impossible to run FOP in the context of reproducible builds (see
> https://wiki.debian.org/ReproducibleBuilds).
> Would it be possible to create an option to set that date value manually or
> some equivalent solution to this problem ?
> Thank you so much for your work on FOP !
> Regards,
> Filippo
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