The 2.751 version of PLCAD is available as a free download on our website. This tool was originally developed by RedRiver Studio. The program relates to Photo & Graphics Tools.
From the developer:
PLCAD is a Windows 2D CAD software. PLCAD is a powerful drawing program that gives you the ability to create professional two-dimensional drawings.
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, its price is only US$79.5. It is great for architects, engineers and students.
You may want to check out more software, such as Montagne, Wire Pilot Plugin or ImageVisu, which might be related to PLCAD.