GraphicsMagick is the swiss army knife of image processing. It provides a robust 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, SVG, and TIFF.

http://www.graphicsmagick.org/

This installer guides you through the steps necessary to install GraphicsMagick 1.3.12 for Mac OS X. To get started, click Continue.