ImageMagick 7.1.0.54
Description by the Software Developer:"ImageMagick 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 Bezier curves can be added to images and stretched and rotated."