A C library to read, create, manipulate and save images. It supports PPM, XPM, GIF, PNG and JPG image formats, and X11 BDF fonts for drawing text. The API is partially implemented as a Perl module, included with the distribution.
CPAN module for loading, generating and saving vector drawings. Supports an extensible plug-in architecture to support importing and exporting to various file formats.
CPAN module based on GD to create charts. Supports: point, line, bar, line-point, composite, stacked-bars, pie, pareto, horizontal-bars, split, error-bars, direction and mountain charts.