A-PDF Password Security

Password Security可以保护PDF档案，与128位元加密或删除密码保护。它可以处理任何单一或一批文件，它可以设定密码的安全档案，自动压缩档案。

A-PDF Password Security is a desktop utility program that lets you change password security of existing Acrobat PDF files. That means you can protect PDF files with 128 bit encryption, or remove existing password protection. It can handle either single or batch documents. Another convenient features include password pool and hot directory.