A page description language developed by Adobe which has become a standard in the digital prepress stage.
This is a language used for printing documents on laser printers and other output devices, such as imagesetters which are used to produce camera-ready copy.
PostScript is an object-oriented language which means it treats images, including the fonts, as geometrical objects rather than as bitmaps.
It describes documents largely independently of the device used, so that, for example. the resolution of an image is not defined until the output device has been determined.
PostScript 2 offers improved colorimetric facilities, since the reference color space is integrated in accordance with the CIE standard.
PostScript 3 also improves the way in which colors and three-dimensional objects are displayed and supports the trapping of graphic objects.