A printing system includes an image forming apparatus, a server, and a mobile device. The image forming apparatus includes an identification information sending section that sends identification information via radio waves. The server includes a print data managing section that manages print data in association with user information. The mobile device includes an identification information receiving section that receives the identification information. The mobile device transmits to the server the user information and the identification information associated with the user information. The server performs a specific operation for causing the image forming apparatus corresponding to the identification information associated with the user information to execute a print job based on print data managed in association with the user information transmitted.