GIMP

Category: Image Editing

Software homepage: http://www.gimp.org/  

(42 votes, average: 4.67 out of 5)

GIMP (an acronym for GNU Image Manipulation Program) is a free and open-source raster graphics editor used for image retouching and editing, free-form drawing, resizing, cropping, photo-montages, converting between different image formats, and more specialized tasks.