1. A document information input apparatus for recognizing information in a real document and inputting said information recognized to a document displayed by a computer, comprising: a designating part designating an area to be processed in said real document; a detecting part detecting said area to be processed designated by said designating part; a reading part reading an image of said area to be processed; a character recognition part recognizing said image of the area to be processed as text information; and a pasting part pasting a result of said character recognition part to a pertinent position of said document displayed by the computer.