A printing system including a client terminal, a printing apparatus, and a Web server for allowing the client terminal to display a print preview image, wherein the client terminal includes: a print setting section which, when a print setting is changed on a screen notifies the Web server of the changed print setting and requires creation of a print preview image, and when a predetermined time period has elapsed after the change, requests the print preview image reflecting the changed print setting; and a preview display section which displays the image acquired from the Web server, and wherein the Web server includes: a control section which, when the changed print setting is notified, creates the print preview image by reflecting the change, and when the print preview image is required, sends the print preview image reflecting the changed print setting to the client terminal.