Job data is created by a personal computer 4. A display attribute and a program corresponding to the display attribute are attached to this job data. On the other hand, a received job is displayed on a screen of an operation panel of a digital copier 1. Whether or not the display attribute is attached to job data is determined in display processing of this operation panel. Then, if the display attribute is attached, the display screen is changed corresponding to the display attribute. This display attribute contains enlargement of a display content, change of display color and the like. If a function corresponding to the display attribute is not supported, a program attached to job data is executed. Consequently, there is provided a job information display apparatus, a job execution apparatus, a job instruction apparatus and a job processing system capable of changing the display screen depending on the display attribute of the job.