An image forming apparatus is connected to an information processing device and at least one external image forming apparatus through a communication circuit. The image forming apparatus includes a communication section, an image forming section, an image processing section, and an assignment control section. The image processing section performs image processing on print data received from the information processing device. The assignment control section determines a print destination for processed print data subjected to image processing by the image processing section from the image forming apparatus of its own and the at least one external image forming apparatus.