>Tell a programmer it is impossible and everything on their desk hits the floor and their keyboard starts clicking. (s)

Not me! I only want to know why is impossible! :)

>How would you distinguish between a circles, outlines and other characters and a pencil mark at a pixel level -- effectively & quickly. Yes it could be done if you had a customer with pockets much deeper then they have sense. I was speaking in realistic terms.
>
>Tom

I thought you speak in absolute terms. :) I have no idea how an image like that looks, so...

Vlad