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Instant PDF Password Protector is the Free tool to quickly Password Protect any PDF documents on your system. Here are the key features * Instantly Password Protect or Lock PDF file with a click of button * Supports all versions of PDF documents * Lock PDF file with Password (User/Document Open Password) * Supports all the standard Encryption methods - RC4/AES (40-bit,128-bit, 256-bit) * [Advanced] Protect PDF file by adding following Restrictions + Copying + Printing + Signing + Commenting + Changing the Document + Document Assembly + Page Extraction + Filling of Form Fields * [Advanced] Set the Permission Password (Owner Password) to prevent removal of above restrictions * Advanced Settings Dialog to quickly alter above permissions/restrictions * Right click context menu to quickly password protect selected PDF file * Drag & Drop support for easier selection of PDF file * Very easy to use with simple & attractive GUI screen * Support for local Installation and uninstallation of the software Instant PDF Password Protector works on both 32-bit & 64-bit platforms starting from Windows XP to new Windows 10.