QCad is an application for computer aided drafting (CAD) in two dimensions (2D). With QCad you can create technical drawings such as plans for buildings, interiors, mechanical parts or schematics and diagrams. QCad drawing files are in DXF format (DXF 2004, R12), permitting interchange with a wide variety of CAD systems. This package builds from the Community Edition sources, released under the GNU General Public License. A commercially-licensed Professional Edition, which adds a scripting module and support, is available for several platforms; see the QCad home page.