Forms data entry software recommendations needed

[Paul E Condon <pecondon@mesanetworks.net>]

I am working with a volunteer organization. The organization does
community outreach by sending volunteers to knock on doors and ask
questions. Currently the volunteers have printed forms on which they
record the answers that they get. But they have no realistic way of
entering these answers into a computer database. 

I imagine that there exists software that will bring up an image of
the printed form on which they entered the original data, but with
data entry possible on the computer screen at just those places that
are filled in on the paper.

Of course such software exists, but is there free software to do this?
And which is easiest to use by volunteers who are not computer geeks?

-- 
Paul E Condon           
pecondon@mesanetworks.net