pdf document decryption information, very detailed, so the document can refer to the safety of colleagues

pdf加解密\PDF加密、解密内幕（一）- (PDF加密字典对象分析)_虹雨网络_百度空间.htm
.........\PDF加密、解密内幕（三）-彻底破解加密PDF文件_虹雨网络_百度空间.htm
.........\PDF加密、解密内幕（二）- PDF文件口令加密内幕(1)_虹雨网络_百度空间.htm
.........\PDF加密、解密内幕（二）- PDF文件口令加密内幕(2)_虹雨网络_百度空间.htm
pdf加解密

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