An information processing apparatus displays a screen for enabling an operator to select settings for controlling a print output from an image forming apparatus and post-processing applied to a printed product by an independent post-processing apparatus. The post-processing apparatus includes an obtaining unit configured to obtain post-processing information from the post-processing apparatus and a display control unit configured to change contents of the setting screen based on obtained function information and display a changed setting screen. The image forming apparatus includes a determining unit configured to determine based on obtained function information whether the image forming apparatus can execute a print output accompanied by post-processing using the post-processing apparatus, and control a display unit to display a setting screen for controlling the post-processing function when the image forming apparatus can execute the print output accompanied by post-processing.