A method of transmitting contents stored in a mobile device may include displaying a list of the contents on a display screen, receiving a user input for selecting content to be printed, on the display screen, displaying a list of printers capable of printing the selected content, and a ‘send to delivery server’ item on the display screen, transmitting the content to a cloud server based on a user input for selecting the ‘send to delivery server’ item on the display screen, displaying a printing cost of the content on the display screen while the content is being converted into print data by the cloud server, receiving payment information of the printing cost and receiver information of a printout of the content, and transmitting the payment information and the receiver information to the cloud server.