Kicad is an open source software for the creation of electronic schematic
diagrams and printed circuit board artwork.
Kicad is a set of four pieces of software and a project manager:
* Eeschema: Schematic entry.
* Pcbnew: Board editor.
* Gerbview: GERBER viewer (photoplotter documents).
* Cvpcb: footprint selector for components used in the circuit design.
* Kicad: project manager.
WWW: http://www.kicad-pcb.org/