Provided is an image forming system that can obtain similar output results. The job generation unit generates a job and adds a command including a document acquisition destination to the job. The job transmission unit sends a job to which a command is added. The job acquisition unit acquires the job from the terminal. The command analysis unit analyzes the commands included in the acquired job. The document acquisition unit acquires a document from the acquisition destination according to the analyzed command. The rendering unit renders the acquired document and generates output data. The output transmission unit transmits the rendered output data. The output data acquisition unit acquires the output data. The image forming unit forms an image of the output data.