STEPS TO REPRODUCE 1. Open PDF with signatures 2. Click on a signature field. The popup "Il n'y a aucun certificat de signature" shows up, with an help link 3. Click the help link: https://docs.kde.org/stable5/fr/okular/okular/signatures.html#adding_digital_signatures OBSERVED RESULT It's a 404 EXPECTED RESULT It's a help page SOFTWARE/OS VERSIONS Arch Linux, up-to-date. Okular 22.08.1. LANG=fr_FR.UTF-8
Replacing the fr in the URL with en or de makes it work (https://docs.kde.org/stable5/en/okular/okular/signatures.html#adding_digital_signatures), so it looks like a problem with the french localization?
Yeah, the french documentation was last generated in 2014 though people are translating the docmessages, what a waste of effort ^_^