Internal Program Version: cups-filters2  2.0.1

This package contains backends, filters, and other software
that was once part of CUPS, but during the time when CUPS
was developed at Apple, Apple stopped maintaining these
parts as they were not needed by Mac OS.
In addition it contains more filters and software developed
independently of Apple, especially filters for the PDF-centric
printing workflow introduced by OpenPrinting.
Since CUPS 1.6.0 cups-filters is required for using printer
drivers (and also driverless printing) with CUPS under Linux.
This version 2.x of cups-filters is only for CUPS 2.2.2 or newer.

https://github.com/OpenPrinting/cups-filters