Many type designers deal with this as part of their workflow if they work with traditional drawing tools like pen and ink. My understanding is that for classica

Many type designers deal with this as part of their workflow if they work with traditional drawing tools like pen and ink. My understanding is that for classically designed fonts its often easier to redraw vector objects over the scan than to clean up what the automatic tools produce. However, for certain types of "distressed" fonts its a kind of necessity.