Can anyone recommend a good pen or marker to sign prints with?
I really like the silver metailc paint pens, but they are not acid free. Some of the acid free pens don't seem to stick to photos well.
Currently I print on "Fuji Crystal Archive professional photographic papers". Will the small amount of acid from a tiny little signature really bother this paper? Everything else I do is acid free, dry mounting, matte board, etc.
