1. An image processing apparatus that combines an image stored in a memory, information added by a user on a sheet, and an object printed on the sheet, the image processing apparatus comprising: a print control unit configured to cause a printing apparatus to print an object stored in a memory, on a sheet; an inputting unit configured to input a read image obtained by reading the sheet on which the object is printed by the print control unit and information is added by a user; a specifying unit configured to specify an area, in the read image input by the inputting unit, corresponding to the object to be combined, by using the object stored in the memory; an extracting unit configured to extract the information from the read image by analyzing the read image, and to extract the object corresponding to the area specified by the specifying unit from the read image; and a combining unit configured to combine the image stored in the memory, the information extracted from the read image by the extracting unit, and the object extracted from the read image by the extracting unit.