Images obtained by prescanning a transparent original by an image reading apparatus are output from a printing apparatus as a navigation sheet on which the images are laid out together with additional information fields. The navigation sheet containing additional information is read, and the additional information is recognized. The transparent original which is left after prescanning is scanned, and printing is performed on the basis of the recognized additional information. This makes it possible to print out a desired image under desired conditions from the transparent original, in which a plurality of images are recorded, by operating a single apparatus without any external device such as a host computer.