Desktop Color Separations

Desktop Colour Separation (DCS) is an enhanced Encapsulated PostScript file format that was introduced by Quark, Inc.[1] It is now primarily used for specialised graphics work particularly images that use multiple channels, e.g. when applying different spot colours to each part of a greyscale image.[2]

Format

In DCS a CMYK graphic is separated into five files; a main file and four pre-separation files, one for each CMYK process colour.[2][1] The main file contains an indication of which separation files are needed and where to find them, together with a composite image information which is used to print a composite of the image.[1][3]

Operation

When output to a PostScript printer, the printer driver reads the information in the main file and assigns the cyan, magenta, yellow, and black files to their corresponding separation files.

References
  1. "OPI and DCS Desktop Color Separation Method Comparison". Adobe Systems Inc. Retrieved 2016-07-13.
  2. Bear, Jacci Howard. "DCS". About.Com. Retrieved 2009-11-03.
  3. Powers, Lynn (1993-12-10). "Desktop Color Separation (DCS) General Information" (PDF). Adobe Inc. Retrieved 2009-11-04.
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