Abbreviated as
PDL, a
language for describing the
layout and contents of a printed
page. The best-known PDLs are Adobe
PostScript and
Hewlett-Packard PCL (Printer Control Language), both of which are used to control
laser printers.
Both PostScript and modern versions of PCL are object-oriented, meaning that they describe a page in terms of geometrical objects such as lines, arcs, and circles.