[Award Winner ] Creating an old-school map in Gimp.

[Ghalev]

My guess is that it can, I'm just not sure exactly what you're trying to achieve. Could you post a before and after version of the photoshop effect and I'll see if I can patch together the same result in Gimp. I think I know what you're getting at but I'm not 100% sure.

Ah, of course. The overall goal is to use a perfectly-clean digital image to create something that evokes the sense of a perfectly-clean printed one, by introducing some (relatively subtle) random variables in the crisp edges, some gentle blotting on the fonts and so on to suggest the normal imperfections in a 1980s printing process (rather than anything heavy like actual weathering).

I've assembled this sample pretty hastily (so hastily I forgot to add a grid - d'oh!) but it should get the idea across (especially the numerals).