I have used P.C.Gerber for many years. It is DOS program that is graphics only, so it does not relate the layout to the schematic, but has the advantage of being excellent for microwave layout or chemical milling where the exact pattern is as important as the schematic. It works in the old Gerber 273 format, not the newer 273X. It outputs Gerber files directly so no conversion is required. It is very user friendly once you get the hang of it. Unfortunately I know of no instruction book so it's trial and error. It has two versions, a small one that is free (or it was free when the company still existed) and limits the size and a large version that requires a "dongle" on the parallel printer port. If someone wanted to create a software dongle, it is probably possible since those devices were relatively simple. Being a DOS program has the advantage that old DOS computers are easily obtainable for a few dollars. And since they aren't connected to the WEB they never have a virus, and the program has never hung up. It has a few minor bugs that are irritating, but not serious, and encountered very rarely. It makes files that are extremely small, for example I just created a step and repeat program for making some chemical milled sheet metal parts, and there were over 200,000 draws and the total file was 1.5 Megabytes, that zipped to 400 kilobytes. AutoCad converted to Gerber couldn't come close to doing that.

I've tried to get another copy and dongle on the web, but have had no luck so far. I have seen some versions for sale a few years ago, but not now.

Do you know anyone who can make a software dongle? That could make it available on the web.

Best of luck in your search.

FredStorke