Page Description Language (PDL) A language such as {Adobe Systems, Inc.}'s {PostScript} or {Xerox}'s {Interpress} which allows the appearance of a printed page to be described in a high-level, device-independent way. Printing then becomes a two-stage process: an {application program} produces a description in the language, which is then interpreted by a specific output device. Such a language can therefore serve as an interchange standard for transmission and storage of printable documents. (1995-02-20)