An image reading apparatus connected to an image formation apparatus generates an image data for each page of an original document and instructs to add an additional object to the image data. When the addition of the additional object is instructed, an additional object image is generated according to the instruction, and the generated additional object image is incorporated to the image data. A file of a predetermined format is generated according to the image data to which the additional object is incorporated, and is output to the image formation apparatus.