Published at LXer:

Adobe developed, specified and published the exact format of PPD files, starting more than 20 years ago. Ever since, PPD files have been used on Apple Macs and Windows PCs (and a few other platforms) to describe and drive PostScript printers. CUPS extended the concept of PPD files to non-PostScript printers as well (because CUPS uses a computer-based PostScript interpreter, and it can direct each job through a conversion filter to create a jobfile with a format feasible for the target printer). A CUPS printer named foobaz has its own model-specific print options represented in the file foobaz.ppd that lives in /etc/cups/ppd/. You can of course look at it in an editor.

Read More...