I am looking for a simple intuitive redline program that is compatable with acad. One of our architects is out of the office alot and works off his laptop/stilus, but he dosn't know how to draw a line with acad. we are looking for a way to send him drawings, that he can mark-up (without acad) and send back to us so we can make the changes basied off his designs. Anyone know of a program that might work? What we are doing now is sending him jpegs, but that is not very efficient.