How to Encrypt PDF Files – Password Protection

PDF files has been used all around the world. The government, non-commercial and semi government sector's use PDF file to manage documentation. It should be highly protected so that it cannot be used by unauthorized user. All the firms like software, engineering, science, banking used the PDF document as a technical document. In the defense system PDF files used for secret documentation and the maps are also include in this document. The PDF document is very secure document because it cannot be edit and PDF files are password protect files. An unauthorized user cannot open the Password protected files and these files cannot be transferred from one peer to other. PDF file cannot be corrupted by virus so it is virus free document. The authorized user can only modify the document. As compared to the other application documents PDF is much secure document. You can also convert PDF document with the help of PDF converter software utility tool. Everyone uses PDF files to share confidential documents with other users in the open workspace.