IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM

The technology of the present disclosure includes: displaying album data including an existing page in which a plurality of images are arranged; adding an additional page to the album data; laying out a plurality of image data for the additional page, the plurality of image data including image data selected by a user; and changing arrangement of a plurality of image data in the existing page, based on a layout result of the plurality of image data for the additional page and a layout result of the plurality of image data in the existing page.