This software provides password protection for PDF files and prevents printing, copying, editing, and more. It also offers easy decryption for authorized access to documents.

The software supports various PDF versions, such as PDF version 1.0 (Adobe Acrobat 1.x), PDF version 1.1 (Adobe Acrobat 2.x), PDF version 1.2 (Adobe Acrobat 3.x), PDF version 1.3 (Adobe Acrobat 4.x), PDF version 1.4 (Adobe Acrobat 5.x), PDF version 1.5 (Adobe Acrobat 6.x), PDF version 1.6 (Adobe Acrobat 7.x), PDF version 1.7 (Adobe Acrobat 8.x, 9.x, 10.x, ISO 32000), and PDF version 2.0 (ISO 32000-2). This wide range of supported versions ensures compatibility with most PDF files.
Moreover, the software is compatible with various Windows operating systems, including Windows 8 Home Basic, Home Premium, Business, Enterprise, and Ultimate, as well as Windows 7 Home Basic, Home Premium, Business, Enterprise, and Ultimate. Other supported platforms include Microsoft Windows XP Home Edition, Professional Edition, and Media Center Edition. You can also use the tool with Microsoft Windows 2000 Professional Edition, Server, and Advanced Server, Microsoft Windows Server 2003 Standard Edition and Enterprise Edition, Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Home Server Edition, Microsoft Windows Media Center Edition, Microsoft Windows NT 4.0 Service Pack 6, Microsoft Windows ME, and Microsoft Windows 98 Second Edition.
Overall, this software is an excellent choice for those who want to protect their PDF files with passwords and prevent unauthorized access, copying, modifying, or printing. With its easy-to-use interface and comprehensive features, it's definitely worth considering.
Version 5.0: Add support for Windows 8 64bit and 32bit.
Version 3.20: Add support for Windows 7 and Windows Vista 64-bit.