gimp
The GNU Image Manipulation Program , or GIMP , is a raster graphics editor used to process digital graphics and photographs. Typical uses include creating graphics and logos, resizing and cropping photos, altering colours, combining multiple images, removing unwanted image features, and converting between different image formats. GIMP can also be used to create basic animated images in GIF format. It is often used as a free software replacement for Adobe Photoshop, the most widely used bitmap editor in the printing and graphics industries; however, it is not designed to be a Photoshop clone. The project's mascot is named Wilber.
The project was started in 1995 by Spencer Kimball and Peter Mattis and is now maintained by a group of volunteers under the auspices of the GNU Project. The latest version of GIMP, v. 2.4.6, was released on May 30, 2008. Available under the terms of the GNU General Public License, GIMP is free software.