Free graphicsmagick software for linux

GraphicsMagick 1.3.6 provides you with an excellent and must-have product which is the swiss army knife of image processing. Comprised of 259K physical lines (according to David A. Wheeler's SLOCCount) of source code in the base package (or 900K including 3rd party libraries). It 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.

Image processing is multi-threaded using OpenMP so that CPU-bound tasks scale linearly as processor cores are added. OpenMP support requires compilation with GCC 4.2 (or later), or use of any C compiler supporting at least the OpenMP 2.0 specification.

GraphicsMagick is quite portable, and compiles under almost every general purpose operating system that runs on 32-bit or 64-bit CPUs. GraphicsMagick is available for virtually any Unix or Unix-like system, including Linux. It also runs under Windows 2000 and later (Windows 2000, XP, and Vista), and MacOS-X. The source code still supports execution under Windows '98.
GraphicsMagick supports huge images and has been tested with gigapixel-size images. GraphicsMagick can create new images on the fly, making it suitable for building dynamic Web applications. GraphicsMagick may be used to resize, rotate, sharpen, color reduce, or add special effects to an image and save the result in the same or differing image format. Image processing operations are available from the command line, as well as through C, C++, Perl, PHP, Tcl, Ruby, or Windows COM programming interfaces. With some modification, language extensions for ImageMagick may be used.

GraphicsMagick is originally derived from ImageMagick 5.5.2 but has been completely independent of the ImageMagick project since then. Since the fork from ImageMagick in 2002, many improvements have been made (see news) by many authors using an open development model but without breaking the API or utilities operation.

Major Features:

1. Convert an image from one format to another (e.g. TIFF to JPEG)
2. Resize, rotate, sharpen, color reduce, or add special effects to an image
3. Create a montage of image thumbnails
4. Create a transparent image suitable for use on the Web
5. Turn a group of images into a GIF animation sequence
6. Create a composite image by combining several separate images
7. Draw shapes or text on an image
8. Decorate an image with a border or frame
9. Describe the format and characteristics of an image