The system according to the present invention includes: a portable storage medium which can store data and job data regarding a job to be executed by the image processing apparatus; an information processing apparatus which can record and read the job data in the portable storage medium to be executed by the image processing apparatus; and at least one image processing apparatus which can read and update the job data stored in the portable storage medium. The image processing apparatus reads the job data stored in the portable storage medium and executes image processing based on the job data. In addition, when the job data is interrupted during its execution, the image processing apparatus can add data which indicates that the job is interrupted in the job data or record the data which indicates that the job is interrupted to be related with the job data. The image processing apparatus reads the job data which includes the data indicating that the job is interrupted and resumes the job from the interrupted state. The data which indicates that the job is interrupted may be recorded to be related with the job data separately from the job data.