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PostScript is a page description language and programming language used primarily in the electronic and desktop publishing areas.

John Warnock and Chuck Geschke founded Adobe Systems in December 1982. They created the simplified page description language PostScript, which went on the market in 1985. At about this time they were visited by Steve Jobs, who urged them to adapt PostScript to be used as the language for driving laser printers, which was added to a Canon printing engine to create the LaserWriter.

In March of 1985, the Apple LaserWriter was the first printer to ship with PostScript, sparking the desktop publishing (DTP) revolution in the mid-1980s. The combination of technical merits and widespread availability made PostScript a language of choice for graphical output for printing applications. For a time an interpreter for this language was a ubiquitous component of laser printers, into the 1990s.

Once the de facto standard for electronic distribution of final documents, PostScript has effectively been succeeded by PDF in this area. By 2001 there were fewer printer models which came with support for PostScript, largely as a result of the increasing power of the built-in printing systems supplied with most operating systems. The use of a PostScript laser printer does, however, significantly reduce the CPU workload involved in printing documents, and does allow typeset-quality printing without the need for printer-specific drivers.

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