A system capable of processing an coded image stores first information including information indicating output time when an image has been output from an output apparatus and information indicating a user who has instructed the output apparatus to output the image in association with second information including information indicating an original output apparatus has output a source image of the image, information indicating output time when the source image has been output from the output apparatus, and information indicating a user who has instructed the original output apparatus to output the source image. The system searches for a coded image to acquire first information, and then displays the second information.