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Encrypt PDF Command Line is a professional and useful program that can help you encrypt your PDF files by Command Line. With Encrypt PDF Command Line, you can set open or owner passwords for your PDF files. Owner passwords can be used to protect PDF files from printing, editing, change, and copying. With an owner password, users can get full access to the PDF file. When opening a PDF with user password, you will restrict you based on how the PDF was password protected (printing may be disabled, for instance). Feature of Encrypt PDF Command Line: 1. Support drag and drop. 2. Set permissions to all the PDF in your archive in batches. 3. Do NOT need Adobe Acrobat software. 4. Set open or user passwords to protect PDF from unauthorized opening. 5. Support 40-bit or 128-bit PDF encryption protection. 6. Provide a command line application. 7. Simple to use it inside your CGI/ASP/PHP/etc. (Server Side)