An image forming apparatus includes: a first designation portion which designates a directory from plural directories stored in a storage medium; a first printing portion which index prints images on a first print medium based on files stored in the directory designated by the first designation portion, the files including at least one of an image data file and a sub-directory; a display portion; a first display control portion which controls the display portion to display information for designating the files after the images are index-printed by the first printing portion; a second designation portion which designates one of the files based on the information displayed on the display portion; and a second printing portion which prints an image on a second print medium based on the designated one of the files.