ImageMagick 6.3.5-6

ImageMagickTM, version 6.2.2, is a free software suite for the creation, modification and display of bitmap images. ImageMagick can read, convert and write images in a large variety of formats.
Images can be cropped, colors can be changed, various effects can be applied, images can be rotated and combined, and text, lines, polygons, ellipses and Bézier curves can be added to images and stretched and rotated.
ImageMagick is free software: it is delivered with full source code and can be freely used, copied, modified and distributed. Its license is compatible with the GPL. It runs on all major operating systems.
Most of the functionality of ImageMagick can be used interactively from the command line; more often, however, the features are used from programs written in the programming languages Perl, C, C++, Python, PHP, Ruby or Java, for which ready-made ImageMagick interfaces (PerlMagick, Magick++, PythonMagick, MagickWand for PHP, RubyMagick, and JMagick) are available. This makes it possible to modify or create images automatically and dynamically.
ImageMagick supports many image formats (over 90 major formats) including popular formats like TIFF, JPEG, PNG, PDF, PhotoCD, and GIF.
Main features:
- Convert an image from one format to another (e.g. TIFF to JPEG)
- Resize, rotate, sharpen, color reduce, or ali special effects to an image
- Create a montage of image thumbnails
- Create a transparent image suitable for use on the Web
- Turn a group of image into a GIF animation sequence
- Create a composite image by combining several separate image
- Draw shapes or text on an image
- Decorate an image with a border or frame
- Describe the format and characteristics of an image
ImageMagick includes a number of command-line utilities for manipulating images:
convert
identify
mogrify
composite
montage
compare
display
animate
import
conjure
Most of you are probably accustom to editing images one at a time with a graphical user interface (GUI) with such programs as gimp or Photoshop. However, a GUI is not always convenient.
Suppose you want to process an image dynamically from a web script or you want to apply the same operations to many images or repeat a specific operation at different times to the same or different image. For these types of operations, the command-line image processing utility is appropriate.