With this patch, if you select rasterized printing, then Okular will render (almost) right into a QPrinter object, rather than converting the file to postscript and rendering that. I'm fairly confident that this will make your stamps appear on the printout.
No. Your problem really smells like a problem with annotation handling, and printing is just a symptom of something deeper.
You may be able to partially circumvent your printing problem now that we have
https:/ /git.reviewboar d.kde.org/ r/130218/
With this patch, if you select rasterized printing, then Okular will render (almost) right into a QPrinter object, rather than converting the file to postscript and rendering that. I'm fairly confident that this will make your stamps appear on the printout.