An image display apparatus connected to a printer, for displaying an image to be printed by the printer, includes display section for displaying taken image data as a thumbnail, control section for generating edited image data by editing the taken image data selected by a user and generating an additional thumbnail of the edited image data, and select section for selecting a taken image displayed on the display means to be edited, an editing operation for the taken image, and a print image. As the taken image is edited, the control means displays the additional thumbnail of the edited image data in addition to a thumbnail of the taken image data on the display means to allow each of the thumbnail and the additional thumbnail to be selected as the print image.