Manchegox

GIMP is the GNU Image Manipulation Program, a tool for such tasks as photo retouching, image composition and image authoring.

Read here for full introduction to GIMP’s capabilities.

Requirements
This application requires GTK+ version 2.10.x. Other dependencies include:
libart2 (required)
gimp-print (recommended)
AA-lib (optional)
libexif (optional)
libmng (optional)
libRSVG (optional)
libwmf (optional)