According to the present invention, the quality of a small character can be prevented from lowering during copy of an image in an original. An image in an original is read by a scanner, and a recognition unit performs detection of a character size and a character position as well as character recognition. A CPU reads a font from a dictionary in accordance with the recognized character recognized by the recognition unit, and an image is generated based on the character size and the character position detected by the recognition unit and a copy magnification set by an MMI.