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bug#27563: [PATCH v3 0/2] Make ghostscript reproducible.


From: Ludovic Courtès
Subject: bug#27563: [PATCH v3 0/2] Make ghostscript reproducible.
Date: Fri, 07 Jul 2017 14:00:09 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)

Danny Milosavljevic <address@hidden> skribis:

> Also, newer PDF files have an RDF header specifying some extra information
> in an XML-like format.  For example there's an instance UUID (PDF/A specifies
> that it's recommended to set this to an empty string), and a document UUID.
> The latter again is time-based.

If it’s time-based, then the solution may be to honor SOURCE_DATE_EPOCH.

I asked on #reproducible-builds (OFTC).  A patch had been proposed
upstream but rejected:

  http://bugs.ghostscript.com/show_bug.cgi?id=696765

See also
<https://wiki.debian.org/ReproducibleBuilds/PdfGeneratedByGhostscript>.

Ludo’.





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