This invention achieves to prevent information leakage as much as possible when a material printed by an image forming apparatus is left unrecovered. This invention relates to an information processing method in an image forming apparatus capable of printing a Web page displayed by a browser, including a step of, when an instruction to display a Web page is input, searching a storage unit which stores information representing the confidentiality of the Web page and its URL in advance in correspondence with each other, a step of reading out, from the storage unit based on the search result, information which corresponds to the URL of the display instruction-input Web page and represents the confidentiality of the Web page, and a step of printing, together with the Web page displayed based on the display instruction, the readout information representing the confidentiality of the Web page.