An image editing apparatus configured to perform ganging of a plurality of content images on a printing plate capable of transferring ink onto an output medium, includes: a region dividing unit that two-dimensionally divides a predetermined region on the printing plate into a plurality of sub regions; a priority order giving unit that gives an order of priority of disposition to each of the sub regions in a descending order of relative transfer amounts of the ink onto the output medium; a usage amount estimating unit that estimates respective usage amounts of the ink according to two or more content images out of the plurality of content images; and a disposition determining unit that determines respective disposing positions of the content images according to a disposition rule for sequentially disposing the content images of which the usage amount is estimated to be large in the sub regions having high priorities.