An image forming apparatus acquires a print target image, scans an image on a sheet, recognizes reuse information in the image scanned from the sheet, generates reuse information after printing the print target image from the recognized reuse information and the acquired print target image, selects an area where the reuse information can be printed, in the acquired print target image, combines the reuse information with the selected area in the print target image, deletes the image on the sheet from which the image is scanned, and forms the combined image on the sheet from which the image is deleted, with a erasable image forming material.