This has now been on nightly for a while, QA has gone through it, and all known issues / regressions have been addressed, so if all goes well we plan to let this work ride the trains along with tagged PDF generation in Firefox 158.
Thanks to Lee Salzman for all the Skia fixes and reviews, and to Jamie for making PDF generation more accessible in Firefox :) Cheers, -- Emilio On Tue, Jun 30, 2026 at 5:49 PM Emilio Cobos Álvarez <[email protected]> wrote: > This took a while to land (due to other priorities and blockers that came > up), but it has stuck now. Let me know if you see pdf generation issues on > Nightly. > > Also note that for actual print output we still use Cairo in some places, > see bug 2036950 <https://bugzilla.mozilla.org/show_bug.cgi?id=2036950> for > some context. > > Thanks, > -- Emilio > > On Fri, Feb 27, 2026 at 8:15 PM Emilio Cobos Álvarez <[email protected]> > wrote: > >> Hi all, >> >> In bug 2020017 <https://bugzil.la/2020017>, I plan to start testing the >> SkPDF back-end on Nightly builds for print-to-pdf output. >> >> This will allow us to eventually get rid of mozcairo (which is the >> current back-end). Note that GTK3 might still use system Cairo in some >> cases. More importantly, this also unblocks improvements on generating more >> accessible PDFs (bug 1657973 <https://bugzil.la/1657973>). >> >> Ideally this doesn't have any user-visible behavior change, but it might >> need some tuning. In my limited testing, the size of the generated PDFs >> seems reasonable, and the print quality is good, but of course there are >> tons of documents you can print out there... :) >> >> This is behind the pref `print.experimental.skpdf` (and soon >> `print.skpdf.image-encoding-quality` >> for jpeg encoding quality). Please file bugs on either print quality, PDF >> file size, or missing functionality against bug 1372506 >> <https://bugzil.la/1372506>. >> >> Let me know if there's any concern with proceeding. >> >> Thanks a lot, >> -- Emilio >> > -- You received this message because you are subscribed to the Google Groups "[email protected]" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/a/mozilla.org/d/msgid/dev-platform/CAFhp-qduJAeXwz5fT8RWUFLbdxnL%3DHpaOwNyEtox1cwgoy7ptg%40mail.gmail.com.
