PGF/TikZ is a tandem of languages for producing vector graphics from a geometric/algebraic description. PGF is an acronym for Portable Graphics Format. TikZ is a recursive acronym for TikZ ist kein Zeichenprogramm. PGF is a lower-level language, while TikZ is a set of higher-level macros that use PGF. The top-level PGF and TikZ commands are invoked as TeX macros, but in contrast with PSTricks, the PGF/TikZ graphics themselves are described in a language that resembles MetaPost. Interpreter for PGF and TikZ is written in TeX. More »

Inkscape is a vector graphics editor application. It is distributed under a software license, the GNU GPL. Its stated goal is to become a powerful graphics tool while being fully compliant with the XML, SVG, and CSS standards. Inkscape is cross-platform and runs on Mac OS X, Unix-like operating systems, and Microsoft Windows. More »