samedi 30 mai 2015

How to clean up a coloured document so it appears white?

In the past I've had documents printed at a copy shop but lately the owner says he cannot do this as the original document is on green paper, although this wasn't a problem for him before.
He said he could "clean it up" so text will be on a white background but I don't know what he means by cleaning it up.
Is there a way of scanning the document so it appears on white background rather than shaded as it would be copying the green part of the document?
Documents appear dark when copied in b&w with ink being used unnecessarily to give a shaded background.
Thanks


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