GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages. Scripting questions on Stack Overflow, software support questions on Super User, and anything related to design on Graphic Design.
GIMP (GNU Image Manipulation Program) is a free, cross-platform photo retouching and graphics editing tool. It is open source and available for most operating systems including Microsoft windows, Mac osx and linux.
It competes with adobe-photoshop.
GIMP can accomplish essential image editing tasks such as resizing, editing, and cropping photos, photomontages combining multiple images, and converting between different image formats. GIMP can also be used to create animated images in many formats such as GIF and MPEG through the Animation Plugin.