PDFKey Pro can unlock PDF documents protected for printing and copying when you've forgotten your password. It can now also protect your PDF files with a password to prevent unauthorized access and/or restrict usage permissions. PDFKey Pro can also integrate in complex workflows using command-line tools (included).
Features: Requirements: Home Page - http://pdfkey.com/en/
Completely unlocks files restoring editing and printing capabilities
Supports PDF with viewing password set as well (providing the correct password)
Protects your PDF files with a password to prevent unauthorized access
Restricts usage, such as printing and copying, permissions with a password.
Batch processing
Automatic update system via UpdateFX
Command Line Tool to use in scripts
Localized in English, Italian, Russian, German and French
Free support
Intel, 64-bit processor.
Mac OS X 10.7.4 or later.
TO MAC USERS: If RAR password doesn't work, use this archive program:
RAR Expander 0.8.5 Beta 4 and extract password protected files without error.
TO WIN USERS: If RAR password doesn't work, use this archive program:
Latest Winrar and extract password protected files without error.