METHOD FOR OUTPUTTING PRINTING MARKING WATERMARK OF CERTIFICATION INFORMATION BY SECURITY RULE BASED ACCESS CONTROL FUNCTION FOR DOCUMENT OUTPUT

摘要

PURPOSE: A method for outputting the printing marking a watermark of the certification information by a security rule based access control function for the document output is provided to prevent the outflow of printing by controlling the access to a file and a printer according to the security rule, and automatically printing the certification information in a watermark on all certified printings. CONSTITUTION: A client security printer agent makes a background image as the watermark at a center of the output document by using the certification information, makes a document output image printing the watermark by covering the background image with an upper image, and offers it to a printer drive(P13). The client security printer agent offers the certification information to a security printer proxy through a socket and the security printer proxy stores the printer permission information in an appointed position(P16). The printer proxy decides the printer use by automatically detecting a printer system call for an output request generated from a printer server(P18). The printer proxy controls the printer drive and outputs the printing marking the watermark(P21).