An image forming system includes a portable terminal device and an image forming apparatus. The portable terminal device includes a job information acquisition circuit, an augmented reality circuit, and a job moving circuit. The job information acquisition circuit acquires job information indicative of the print job executed by the image forming apparatus. The augmented reality circuit causes a display device to display a composite image where a job information image based on the job information acquired by the job information acquisition circuit is combined on a location corresponding to the image forming apparatus on a captured image captured by an imaging device. The job moving circuit moves the print job between the plurality of image forming apparatuses corresponding to an operation input by an input device with respect to the job information image displayed on the display device by the augmented reality circuit.