A file transmission apparatus (101) accepts a file transmission instruction for a transmission destination selected by a user from the transmission destination list, and transmits a check-out request for a file specified by information of the selected transmission destination to the server (102) without the intervention of the user, and transmits a check-in request for a file subjected to the check-out request to the server using an image file input from an image input unit without the intervention of the user, and updates the file stored in the database using the image file. The apparatus registers the image file in the server by transmitting a check-in request of the image file input from the image input device as a new file without the intervention of the user when a file is not specified by the information of the transmission destination selected by the user.