An image processing method in an image processing apparatus which has storing means for storing group information set every predetermined print service request, receives a print job according to a predetermined print service request from a data processing apparatus, and processes the received print job. This method has: a discriminating step of discriminating whether a print job according to a specific print service request which is received corresponds to the group information stored in the storing means or not; a setting step of, if it is determined by the discriminating step that the print job does not correspond, setting specific group information for enabling the print job to be executed into the non-corresponding print job; and a job control step of controlling permission/inhibition of the execution of the print job according to the predetermined print service request or the specific print service request on the basis of the group information or the specific group information.