The present invention provides an image editing apparatus which decreases a CPU load required for previewing a group of finished images used for continuous presentation, such as a photo movie, and reduces a processing time. The image editing apparatus includes an image obtaining unit obtaining material images; a converting unit carrying out conversion on an image, included in the material images, of which load required for playback is greater than a predetermined load reference, the conversion additionally creating a proxy image corresponding to the image and having a smaller load required for the playback; and a preview playback unit playing back, as a preview, the proxy image and material images which are included in the material images and are other than the image corresponding to the proxy image in a predetermined order.