10. The method according to claim 9 , wherein the receiving comprises receiving an input of information on a location within the original image where the plurality of sentences are displayed; and wherein the displaying comprises displaying the at least one sentence expressed in the selected language on the location within the original image.
9. A sentence hiding and displaying method comprising: receiving an input of information on an original image, a plurality of sentences corresponding to the original image and information on at least one language to be hidden; determining at least one sentence to be hidden expressed in the language to be hidden from the plurality of sentences; creating a hidden image of the original image, wherein the at least one sentence to be hidden is hidden in the hidden image; receiving an input of information on a language selected by a user; extracting at least one sentence expressed in the selected language from the at least one sentence hidden in the hidden image; and displaying the at least one sentence expressed in the selected language on the original image.