Version: 0.20 (using KDE KDE 3.5.2) Installed from: Ubuntu Packages OS: Linux Ghostview supports overprinting since it's version 8, and the free (as in beer) version of AcroRead for Linux also has an option for "Overprint preview" (in Edit, Preferences, Page Display). The ability to preview overprint is very important for people working in professional DTP. Without it, there is no way to work efficiently with overprint, spot colors, and separations. There should be a way in Kghostview (or in Kpdf, if developpers of Kpdf also read this) to preview overprinting. It might be tied with the abilit to separate colors somehow. I believe that PStill can convert files to a jpg or a tiff previewing the overprinting. I have not been able to test this, but it might help.
Moved to Okular.
I have raised this request in the okular mailing list: https://mail.kde.org/pipermail/okular-devel/2023-May/044525.html Oliver Sander has indicated that (some level of) overprint support exists in poppler: > See for example the manpage of pdftops. Ref: https://mail.kde.org/pipermail/okular-devel/2023-May/044531.html They have directed me to raise an issue here - I will crosslink this bug back to the mailing list and see if it can get some movement :)
Can you please attach an example file?
Created attachment 159407 [details] PDF file requiring Overprint support to display correctly done!
Created attachment 159408 [details] Comparison of PDF output with Overprint on vs off
PR for okular: https://invent.kde.org/graphics/okular/-/merge_requests/764 PR for poppler: https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/1411 PPA for jammy if people feel like testing: https://launchpad.net/~bernard-gray/+archive/ubuntu/okular-poppler
After some review/modifications, both patches have been accepted upstream https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/1411 https://invent.kde.org/graphics/okular/-/merge_requests/764 Setting RESOLVED FIXED