Graphite is a Python graphing package currently under development which
uses either SPING or PIDDLE (http://piddle.sourceforge.net).
It produces PS, PDF, SVG output, bitmap, TK or wXpython with optional modules.
The Watermarks is a java library for images and text watermarking fingerprinting and tamper-proofing. The supported carrier formats for a watermark are JPEG and PDF. The project also aim to build a test environment to evaluate robustness of implemented a