Provided is an image forming apparatus, including an image forming unit that forms a test image for correction of a position of an image on the recording medium, a reading unit that reads an image from the recording medium on which the test image is formed, a transport unit that transports the recording medium, and a correction unit that corrects the position of the image, wherein the test image includes a first mark that is provided at a distance determined from the first reference line, a second mark that is provided at the distance from a second reference line set with respect to a second side, and a code image that is provided at a position determined with respect to the first mark and the second mark, and that indicates information for correction of the position of the image by the correction unit.