Editing PostScript Printer Description (section)

== CUPS ==
[[CUPS]] uses PPD drivers for all of its PostScript printers, and has even extended the concept to allow for PostScript printing to non-PostScript printing devices, by directing output through a CUPS filter. Such a file is no longer a standard PPD, but rather a "CUPS-PPD".
CUPS clients usually read the current PPD file from the server every time a new print job is created. It is located in <code>/usr/share/ppd/</code> or <code>/usr/share/cups/model/</code>.
<pre>
/usr/share/ppd
├── cupsfilters
│   ├── Fuji_Xerox-DocuPrint_CM305_df-PDF.ppd
│   ├── Generic-PDF_Printer-PDF.ppd
│   ├── HP-Color_LaserJet_CM3530_MFP-PDF.ppd
│   ├── pxlcolor.ppd
│   ├── pxlmono.ppd
│   └── Ricoh-PDF_Printer-PDF.ppd
├── cups-pdf
│   ├── CUPS-PDF_noopt.ppd
│   └── CUPS-PDF_opt.ppd
└── custom
</pre>