A9CAD (ver 2.2.1) Abandoned Freeware Useful free CAD (Computer Aided Drafting) programs, that are not crippled, are hard to find. In the 2D CAD field, AutoCAD is the de-facto standard to which all others must compare. Unfortunately, ALL freeware CAD software (even A9CAD) currently comes up short. A9CAD is one of the better free general purpose 2-dimensional CAD programs that supports the AutoCad DWG/DXF drawing formats (up to DWG/DXF 2000). With A9CAD you can draw shapes such as line, rectangle, circle, poly-line, text and dimension; performing drawing modifications like move, scale, rotate, explode, trim, fillet and mirror; edit color, fill mode, line type and line width; and change entity attributes via properties window.