From Wikipedia, the free encyclopedia

GIMP (short for the GNU Image Manipulation Program) is a free software raster graphics editor. It is primarily employed as an image retouching and editing tool.^[3] In addition to free-form drawing, GIMP can accomplish essential image work-flow steps such as resizing, editing, and cropping photos, combining multiple images, and converting between different image formats. GIMP can also be used to create basic animated images in the GIF format. At present, GIMP is usable for amateur or professional work with images intended for viewing on monitors and printing on ink-jet printers.

The product vision for GIMP is to become a high-end graphics application for the editing and creation of original images, icons, graphical elements of web pages and art for user interface elements. One point in GIMP's product vision would see GIMP used for the development of cutting-edge image-processing algorithms.^[4]

GIMP ( GNU/Image Manipulation Program) Homepage >> http://www.gimp.org/

Also check this video that shows GIMP in action:

Windows Screen: