Marking the feature request as rejected, using the keyring should be possible but as you pointed the thumbnail can be a security issue and there is no infrastructure at the moment for the thumbnailer to clean the preview when closing the session. Implementing that would probably not be trivial and the distribution team and upstream will probably not come to that any time soon according to the ration between efforts and the little cosmetic win
** Changed in: evince (Ubuntu) Importance: Low => Wishlist Status: Needs Info => Rejected -- If there is a password stored in the keyring, provide thumbails for password-protected pdf files https://launchpad.net/bugs/54951 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs