SUMMARY STEPS TO REPRODUCE 1. Make sure that Settings > Activities > Default (only one exist) > Tracking File and app use is OFF. 2. Start Okular 3. Open some PDF OBSERVED RESULT Okular clearly remember PDFs and its opened state. I read tons of PDF daily and it creates insane amount of history!! EXPECTED RESULT - When KDESettings clearly say no tracking, those history should be OFF. - Gwenview, your image viewer, has an option to disable history. Why not do same thing? - As a workaround, I purged and set ".config/okularrc" file to read only so that it cannot write any more history. But alas! Your app whine with this message "not writable. Please contact your system admin" SOFTWARE/OS VERSIONS Windows: macOS: (available in the Info Center app, or by running `kinfo` in a terminal window) Linux/KDE Plasma: KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION