CUPS/IPP backend: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911340
Google Cloud Print backend: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911342 Print-to-File backend: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911345
- Bug#911335: ITP: cpdb-libs -- Common Print Dialog Backends ... Till Kamppeter
- Bug#911335: ITP bug reports for the backend packages Till Kamppeter
