Electronic document terminal, signature authentication system, signature authentication method and program for electronic document terminal

摘要

To provide an electronic document terminal, a signature authentication system, a signature authentication method, and a program for an electronic document terminal, which improve the convenience of inputting a signature in an electronic document and enhance the individual-specific authentication ability of a signature .SOLUTION: An electronic document terminal 100 for using an electronic document displays a signature input column for receiving a signature input from a user at a predetermined position within an electronic document together with an electronic document, and displays the displayed shadow input field , Receives input of handwritten signature data from the user by touch input and stores predetermined data including the input handwritten signature data as authentication data so that user authentication can be performed later.(FIG.