This International Standard specifies a media-independent means for prepress electronic data exchange using a tag image file format. This International Standard defines image file formats for encoding colour continuous-tone picture images, colour line-art images, high-resolutin continuous-tone images, monochrome continuous-tone picture images, binary picture images, binary line-art images, screened data, and images of composite final pages.
ANSI/CGATS 12639-2004 history
2004ANSI/CGATS 12639-2004 Graphic technology - Prepress digital data exchange - Tag image file format for image technology (TIFF/IT)