A digital device , comprising: a display unit configured to display an image; a sensor unit provided on the display unit , the sensor unit comprising a first sensor unit configured to sense a first user input for changing pages of a content; a second sensor unit configured to sense a second user input for extracting fingerprint information, wherein the first user input and the second user input are included in a single user input; and the digital device further comprising a processor configured to control operations of the digital device and provide a content including a plurality of display pages of a sequence; wherein the processor is further configured to: display a first display page on the display unit , receive a first user input for changing from the first display page to a second display page of the content, the second display page being a neighboring display page of the first display page in the sequence, extract fingerprint information from the received single user input when the second display page includes a locked area, wherein a locked area is an area permitted to be accessed by only a specific user, and determine whether it is permitted to access the locked area based on the extracted fingerprint information, when it is permitted to access the locked area , display a second display page including the locked area on the display unit , and when it is not permitted to access the locked area , display a second display page excluding the locked area on the display unit . a display unit configured to display an image; a sensor unit provided on the display unit , the sensor unit comprising a first sensor unit configured to sense a first user input for changing pages of a content; a second sensor unit configured to sense a second user input for extracting fingerprint information, wherein a first sensor unit configured to sense a first user input for changing pages of a content; a second sensor unit configured to sense a second user input for extracting fingerprint information, wherein the first user input and the second user input are included in a single user input; and the digital device further comprising a processor configured to control operations of the digital device and provide a content including a plurality of display pages of a sequence; wherein the processor is further configured to: display a first display page on the display unit , receive a first user input for changing from the first display page to a second display page of the content, the second display page being a neighboring display page of the first display page in the sequence, extract fingerprint information from the received single user input when the second display page includes a locked area, wherein a locked area is an area permitted to be accessed by only a specific user, and determine whether it is permitted to access the locked area based on the extracted fingerprint information, display a first display page on the display unit , receive a first user input for changing from the first display page to a second display page of the content, the second display page being a neighboring display page of the first display page in the sequence, extract fingerprint information from the received single user input when the second display page includes a locked area, wherein a locked area is an area permitted to be accessed by only a specific user, and determine whether it is permitted to access the locked area based on the extracted fingerprint information, when it is permitted to access the locked area , display a second display page including the locked area on the display unit , and when it is not permitted to access the locked area , display a second display page excluding the locked area on the display unit . <EOS>