Graphics

Formats : creation, conversion and viewing softwares

 * Postcript - EPS
 * PDF
 * DjVu


 * Ghostscript, Ghostview and GSview
 * Acrobat Reader
 * DjVu
 * Cutepdf
 * pstoedit

Free

 * gnuplot (script) - Tips for Gnuplot
 * Xmgrace (GUI) - Tips for Xmgrace
 * Matplotlib (Python)
 * PyX (Python)
 * Mayavi (Python)
 * Asymptote (script)
 * Inkscape with Tex Text extension for LaTeX formulas (GUI)
 * Xfig (GUI)
 * Skencil (GUI)
 * GoogleSketchUp 3D software (GUI)
 * Dia

With Latex

 * PGF and TikZ and Examples

Non free

 * Adobe Illustrator
 * Mayura
 * Matlab

EPS Files

 * Tips for eps files
 * use ghostscript to remove comments and lighten an EPS file