Reproducibility for Libreoffice (ODT to PDF conversion)

[Jan-Benedict Glaw]

On Sun, 2026-01-25 14:22:48 -0800, Vagrant Cascadian <vagrant at reproducible-builds.org> wrote:
> On 2026-01-25, Jan-Benedict Glaw wrote:
> > I've got one project where I have a few ODT files (containing
> > documentation.) For easy accessibility, I like to also present them as
> > PDF files (which, right now, are created during the build process by
> > simply calling `libreoffice --convert-to pdf some.odt`.) The resulting
> > PDF isn't reproducible. Are there known-good variants to generate a
> > PDF from a ODT file? As an alternative, I'd obviously also manually
> > export the ODT to PDF, but .. that's kind of cheating. ;-)
> 
> If it is just embedded timestamp differences, as far as I know, the only
> way to fix it so far is with postprocessing...
> 
> There are a handful of Debian packages affected by this:
> 
>   https://tests.reproducible-builds.org/debian/issues/unstable/timestamps_in_pdf_generated_by_libreoffice_issue.html

Looking at my PDFs, there seems to also be some differences with
embedded fonts. So that will probably not be resolved in the next
days. So let's just add the PDF directly to the repo.

Thanks anyways!

MfG, JBG

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