PLCAD is a 2D CAD software. PLCAD is designed for anyone who wants a fast and efficient CAD program with the power and versatility of standard programs at an affordable price. PLCAD was designed to interface with AutoCAD as closely as possible, so you can master the complete application quickly, without compromising drafting flexibility. Most of command name is same as AutoCAD, you can type it and run it directly. The working file is DWG file.