Here is the GIMP online user manual in handy printed form GIMP is an acronym for GNU Image Manipulation Program, a freely distributed program for photo retouching, image composition, and image authoring. It can be used as a simple paint program, an expert-quality photo-retouching program, an online batch-processing system, a mass-production image renderer, an image-format converter, and so on. Gimp runs on UNIX, Microsoft Windows, and Mac OS X. For more information (and to download the program at no charge), visit www.gimp.org.