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PDF文件较好地实现了电子文件通过网络传输的原版原式再现问题 ,而电子文件的安全性需要由国家立法、技术防范、加强行政管理及用户教育四个层面共同努力才能实现
The PDF file has realized the problem of the original original reproduction of the electronic file transmitted through the Internet, and the security of the electronic file needs to be achieved through the joint efforts of national legislation, technical prevention, administrative management and user education