It turns out that changing the backend directory's permissions to 0700 disturbs the operation of other CUPS backends. Therefore, this change was reverted in CUPS-PDF 2.5.0-16.
-- cups-pdf: error during the CUPS operation: 'client-error-document-format-not-supported'. in Ubuntu 10.04 https://bugs.launchpad.net/bugs/580837 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs