2025-09-11 00:00:00 PreCAD is a 2D CAD application. You can use many drawing tools without any restrictions. PreCAD saves files in its own format called "pcad" format, but it supports reading DXF, JWC, JWW (jw_cad) files and writing DXF, JWW files (but there are any unsupported elements, functions, and so on). Although It is experimental, you can read PDF, HPGL, SVG and save PDF, PNG, HPGL, SVG.