An image forming apparatus, which forms an image of a document on a recording medium, includes: a transport path through which the recording medium is transported; a transferring unit that is arranged on the transport path and transfers the image to the recording medium; a carrying unit that is arranged on the transport path and carries the recording medium to the transferring unit; and an acquiring unit that is arranged between the carrying unit and the transferring unit and acquires identification information from a radio tag attached to the recording medium.