An image forming apparatus for processing a print job includes an acquiring unit configured to acquire information about a set of printed sheets to be post-processed by a post-processing apparatus, the post-processing apparatus not being connected to the image forming apparatus via a conveying path of the print sheets output from the image forming apparatus, an analyzing unit configured to analyze the print job, and an output control unit configured to output printed sheets on the basis of the print job in which offset stacking is applied to each set of printed sheets to be post-processed as defined by the post-processing apparatus in accordance with a result of analysis performed by the analyzing unit and information regarding the set of printed sheets to be post-processed acquired by the acquiring unit.