>> So I updated /etc/apparmor.d/usr.sbin.cupsd >> and the pdf printing works. > > With what did you update it? > In /etc/apparmor.d/usr.sbin.cupsd, below the line /usr/lib/cups/backend/cups-pdf { I added the line capability mknod, and I changed two lines from @{HOME}/PDF/ rw, @{HOME}/PDF/* rw, to @{HOME}/my_pdf_directory/ rw, @{HOME}/my_pdf_directory/* rw,
>> The config problem remains unsolved. > > Can you reproduce this problem? > Yes - every time I delete the cups pdf printer and try to add a new virtual pdf printer, I can select the printer make (Generic) but in the next step I cannot select a pdf printer type - I have to select the appropriate ppd file and I have to know where it is.