An image forming apparatus including: an image processing section which creates print data to be outputted out of complex original document data including both character data and diagram data in a single page of data; and an image forming section which outputs the created print data onto a sheet, wherein the image processing section determines divided character data and divided diagram data in the complex original document data, to be outputted; creates character print data by enlarging the divided character data and attaching position information in the complex original document data; creates diagram print data by enlarging the divided diagram data and attaching position information in the complex original document data; and creates position information attached print data in which the position information of the divided character data and the divided diagram data are attached to the complex original document data.