Perfect PDF Security

Perfect PDF Security is a safe and user-friendly application for protecting your PDF documents using AES and RC4 encryption algorithms. It supports all standard key length and versions of PDF security. The multiview (multiple files in own windows) possibility is on board now!


  • Encryption / decryption of PDF documents, modify PDF security properties and user permissions
  • Quickly open PDF & XPS files
  • Various viewer layouts, fit modes, zoom tools and search in document text available
  • Print documents with different layout options
  • Navigate using links, outlines and/or semantic zoom
  • Search text
  • Validate signatures
  • Fill in PDF forms

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1 comment


9 February 2015

It worked really well when I used the password protection to open the document. It would be good to have some better instructions on what the encryption and the other protections mean.