An image forming apparatus including an image forming device and a post-processing device having a punching device that forms punch holes of a plurality of types to a paper ejected from the image forming device. The image forming apparatus also includes an indicator. The indicator indicates one of pictographs corresponding to each of punch hole types and indicates an indicated pictograph as a pictograph different from the previous pictograph when the indicated pictograph is selected. Or alternatively, the indicator indicates each of the punch hole types and also indicates a plurality of pictographs different from each other and indicates a pictograph corresponding to a selected punch hole type as a pictograph different from the previous pictograph when the punch hole type is selected.