Abstract: An online document distribution method for a mobile device may include receiving a selection of one online document among a plurality of online documents from a first user, generating a link address of the selected online document using unique information of the first user through an application installed in a mobile device of the first user, transmitting the generated link address to at least one second user device selected by the first user, detecting an access to the selected online document through the generated link address, and updating a score of the first user in response to the detected access to the selected online document.

Abstract: A file transfer method is provided.