A network image processing system that includes a plurality of apparatuses connected to a network and performs jobs in a linkage process in which an upstream apparatus passes a workflow specifying a job to be completed, together with image data to be processed, to a downstream apparatus according to a procedure specified in the workflow. The downstream apparatus has a completion notification transmitting unit that when a predetermined job assigned to the downstream apparatus has been processed completely, transmits to the upstream apparatus a completion notification indicating that the predetermined job has been processed normally. The upstream apparatus has a linkage unit that if the completion notification is not received from the downstream apparatus, updates the workflow to specify, as a new downstream apparatus, another apparatus that can process the predetermined job, and continues to process the predetermined job in the linkage process.