GraphicsMagick

GraphicsMagick provides an image manipulation and translation
utility. It is capable of displaying still images and animations
using the X Window system which provides an interface for
interactively editing images, and is capable of importing selected
windows or the entire desktop. It can read and write over 88 image
formats, including JPEG, TIFF, WMF, SVG, PNG, PNM, GIF, andPhoto CD.
It also allows to resize, rotate, sharpen, color reduce, or add
special effects to an image and to save the result to any supported
format. GraphicsMagick may be used to create animated or transparent
.gifs, to composite images, and to create thumbnail images.
This package is compiled with Q16, which means that it provides better
performance on 16 bit images and less.

          

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License: MIT
URL: http://www.GraphicsMagick.org/