An image forming apparatus includes: an image former which forms one or more images on at least one sheet fed from each of a plurality of feed trays; a first adjuster which adjusts positions of the images formed on the sheet by the image former such that the positions of the images match on both sides of the sheet fed from each of the feed trays; and a second adjuster which further adjusts the positions of the images on the sheet, the positions having been adjusted by the first adjuster, such that the positions of the images match between the sheets fed from the feed trays.