SUMMARY Okular defaults to printing on letter sized paper. PDF pages are A4 $LC_ALL is de_DE.UTF-8 (and DIN A4 is literally a German industry standard size) $LC_PAPER is de_DE.UTF-8 (dito) CUPS printer default is A4 Last document was printed in A4 Actual paper size in the printer is A4 And yet okular still defaults to letter size. every. single. time. STEPS TO REPRODUCE 1. Open PDF 2. Ctrl P 3. Check printer settings 4. Be annoyed about "Letter" being chosen as default paper size, change it to A4 OBSERVED RESULT Printing A4 documents as letter on A4 paper yields strange page margins, so these steps are necessary for each and every printed document EXPECTED RESULT Steps 3+4 become obsolete since A4 (or any other format you'd prefer) can be set as default or is even chosen as default by using other means such as CUPS default paper settings of the printer used or PDF page size SOFTWARE/OS VERSIONS Betriebssystem: Kubuntu 22.04 KDE-Plasma-Version: 5.24.7 KDE-Frameworks-Version: 5.92.0 Qt-Version: 5.15.3 Kernel-Version: 5.15.0-56-generic (64-bit) Grafik-Plattform: X11 ADDITIONAL INFORMATION Maybe a regression of #174354 - maybe not. Other non-KDE applications default to A4 as they should (e.g. Firefox, Thunderbird, Chrome, Opera)