Design And Implementation Of E-doc Protection System Based On PDF

Generally, the sensitive documents in enterprises are distributed by means of E-document. So, it becomes more and more urgent to protect E-document. Right now, the technologies of E-document protection has developed a lot at home and abroad. Window Media Rights Management owned by Microsoft,PDF Merchant owned by Adobe and Apabi are distinguished examples in the field of Digital Right Management.Given the products we talked above, there are still some problems:First, some of them can not provide protection based on security level. For example, Apabi, however, supports multiple document formats and multiple system platforms, but it concerns little in the security level of E-document.Second, multiple document format support. PDF Merchant owned by Adobe only orients the format of PDF.At last, unifying encryption. PDF Merchant provides two ways of encryption, 128 digits for products made in America and 64 digits for products made in other countries.This thesis analyzed the current DRM architecture and DRM-related technologies at home and abroad, and designed and implemented a DRM solution-Specified E-document protection system to solve the problem existing in current DRM.