Patent ID: 8089661

Claim:
A computer system in which information represented by digital document is output to plural pages of print medium, and then information on the plural pages of print medium is scanned to use digital data representing the scanned information, the computer system comprising: a selecting unit adapted to select a page of the plural pages of print medium, the selected page being other than a first page to be output of the plural pages of print medium; an embedding unit adapted to embed authentication information in the information to be output on at least the selected page, but less than all of the plural pages of print medium; a notification unit adapted to notify a user of a page number of the selected page embedded with the authentication information by said embedding unit, in order to inform the user regarding which of the plural pages must be scanned first to complete authentication; a scanning unit adapted to scan information on the plural pages of print medium, the selected page being positioned by the user as a first page scanned to complete the authentication; an authentication unit adapted to complete the authentication by authenticating digital data representing the information read scanned from the plural pages of print medium by said scanning unit based on the authentication information embedded in the selected page; and a control unit adapted to control a process for the digital data representing the information scanned from the plural pages of print medium in accordance with a result of the authentication by said authentication unit, wherein if the result of the authentication by said authentication unit is successful, said control unit is adapted to thereafter cause (a) the digital data representing the information scanned from the plural pages of print medium by said scanning unit to be registered along with (b) corresponding log information in one or more data storage devices.