Design and Implementation of Copyright Protection System for Internet-Published PDF Documents
Jianping Hu · Microelectronics & Computer · 2008
According to the need on the field of documents copyright management,a solution of integrity copyright protection for internet-published PDF documents was presented.In this solution,a new protection technology based on computer fingerprint is implemented to bind the content license with the user's computer fingerprint and individual information.Furthermore,the content of PDF is encrypted with 256 bits symmetrical key and the client sever is achieved by Acrobat plug-in program.Finally,the PDF document realized the content-encrypted protection and can be decrypted and used according with the demanding of the content license.In this way,The system realized copyright protection in the whole life of digital content.