An image delivery system includes an image delivery server, a plurality of image processors, and an information processor, which are connected by a network. The image delivery server delivers a print job to the image processor. The image delivery server includes a data recording unit, a setting recording unit, an updating unit, and a delivery unit. The setting recording unit receives delivery job data and records the received data in the data recording unit. The delivery job data includes at least image data and delivery job setting information for the image processor. The updating unit can update the recorded delivery job setting information based on input from the image processor. The delivery unit delivers a print job to the image processor based on the updated delivery job setting information.