Abstract: An image processing device, an image forming device, and a method for processing image for: separating a first print job into a first piece of job setting information and a first piece of image information; having the first piece of job setting information and the second piece of image information associated with each other to store in a memory; generating a second piece of job setting information of a second print job as a new piece of job setting information according to a setting change with respect to the first print job stored in the memory and associating the second piece of job setting information as generated with the piece of first image information to store in the memory; and transmitting a piece of job setting information of a print job to be executed and a piece of image information associated with the piece of job setting information.