The situation with AppArmor is a known issue that has been documented in /usr/share/doc/cups-pdf/README.Debian for quite some time already. Previously, it only prevented outputing documents to non-standard directories. Recently, it also started to prevent the initial creation of the standard PDF directory under ${HOME}.
The situation with AppArmor is a known issue that has been documented in /usr/share/ doc/cups- pdf/README. Debian for quite some time already. Previously, it only prevented outputing documents to non-standard directories. Recently, it also started to prevent the initial creation of the standard PDF directory under ${HOME}.