GraphicsMagick is the swiss army knife of image processing.
Provides a robust and efficient collection of tools and libraries
which support reading, writing, and manipulating an image in over
88 major formats including important formats like DPX, GIF, JPEG,
JPEG-2000, PNG, PDF, PNM, and TIFF.
Maintained by: Giovanne Castro
(the SlackBuild does not include the source)