A size of a region to be allocated to an image layout date is bigger than a size of a region to be allocated to a date other than the image layout date (image-not-layout date). An image to be allocated to the image layout date is enlarged so that a size of the image matches a size of an allocation region allocated to the image layout date, and the enlarged images is laid. Characters indicating the dates are arranged to regions allocated to previous dates, the image layout date, and following dates. Accordingly, a calendar with an attractive appearance can be generated by altering the layout of the dates and information to be output, even if a user has taken photographs on not so many days in the unit such as a month or a week.