The Gimp
(Version 2.4.7)

The GNU Image Manipulation Program (GIMP), is a powerful and comprehensive imaging solution, suitable for those wanting to manipulate digital photographs, design and export graphics for the web, convert from one file format to another and even produce complex high-resolution compositions for print. The GIMP features a number of paint tools with sub-pixel sampling for high quality anti-aliased brush strokes, a powerful gradient editor and blend tool, layers and layer masks with over 20 blending modes, support for importing and exporting in a myriad of image formats, unsharp mask, levels and curves tools for enhancement of digital photos and much more!

The GIMP is a feature packed program which you may need some time to get to grips with, to help with this process we provide a handful of tutorials for you to follow, as well as the online book, grokking the GIMP, which, while written for GIMP 1.x, still contains invaluable advice and techniques.