QCAD - is a free CAD program, the main purpose of which is to create a complex two-dimensional architectural plans and engineering drawings. QCAD has a collection of items, including more than 4700 items for CAD. The disadvantage is the lack of support for the development of DWG-files, it works exclusively with DXF format. Drawing: arcs, ellipses, circles, dots, lines, polygons, and others. QCAD provides all the necessary functionality to create or edit/change drawings/designs. Also charged with 35 fonts. To control the drawing process provides a command line, located below the main window. The program can print at a scale, unlike other free analogues. QCAD has an intuitive interface and low system requirements