Estelar Protect a PDF is a handy PDF security tool by which one can limit PDF document access and usage with latest 256Bit AES encryption. This makes it a complete solution for authors to secure and to distribute PDFs online without allowing any unauthorized access by unwanted users. Protect a PDF could be the most effective and reliable solution for anyone who is looking for a tool to Protect PDF files from being printed, copied and edited by unauthorized or unwanted users. In addition, users can also apply user/open password restriction to refrain unwanted users to access a PDF file without entering a valid password. It's also an ideal tool for protecting sensitive and confidential documents in PDF format such as bank statements, audit reports, bid documents, price list, book etc. If you cannot let anybody to interrupt or play with your vital and confidential information in PDF files then you must password protect your PDF documents with the password protection using Estelar Protect a PDF tool. Here are the few key features of this tool: 1. Supports PDF open password and owner password protection. 2. Easy to use with user friendly interface and inbuilt screen instructions. 3. Standalone Utility: Works without Adobe Reader or Acrobat. 4. Supports PDF files of Acrobat version up to 10 with latest 256-bit AES Encryption 5. Protect multiple PDF files at once with batch processing feature. 6. Support Windows 98, ME, NT, 2000, XP, 2003, Vista, 7 systems.