Xfig. It's not really a CAD program but it definitely is simple. :)
On Mon, 8 Sep 2003, Glenn Ramsey wrote:
I need to annotate some pictures with dimension lines showing angles.
Does anyone know if there is a Linux 2D CAD program that will let me
load a jpg image and draw dimension lines on it? I know there are lots
of programs of this type around but as yet I haven't come across one
that lets me do this.