cups-filters: cups-filters (CUPS backend and filters)
cups-filters:
cups-filters: cups-filters contains backends, filters, and other software that was
cups-filters: once part of the core CUPS distribution but is no longer maintained
cups-filters: by Apple Inc. 
cups-filters: 
cups-filters: In addition it contains additional filters developed independently 
cups-filters: of Apple, especially filters for the PDF-centric printing workflow
cups-filters: introduced by OpenPrinting.
cups-filters: 
cups-filters: Project site: https://www.openprinting.org/
cups-filters: