Secret PDF
Secret PDF is a free software tool for Windows, Mac and Linux that allows users to password protect, encrypt and secure their PDF files. It features standard and military grade AES encryption methods to password protect and lock PDFs, preventing unauthorized access.
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Secret PDF: Password Protect & Encrypt PDF Files
Free software for Windows, Mac, Linux to secure PDF files with AES encryption, password protection and military grade security
What is Secret PDF?
Secret PDF is a multi-platform, free and open source PDF encryption software tool. It provides users the ability to add military grade password protection and AES encryption to PDF documents across Windows, macOS and Linux operating systems.
With Secret PDF, users can password protect their sensitive PDFs with 128-bit or 256-bit AES encryption, meaning the documents can only be accessed, viewed or printed by those who have the password. This helps ensure confidential business, financial and personal documents remain secure.
Key features of Secret PDF include:
- Set passwords and customize access permissions for opening, editing, printing PDFs
- Strong AES-128 and AES-256 bit encryption methods
- Batch processing to protect multiple PDFs at once
- Free and open source software with no ads, spam or trials
- Lightweight program with easy to use drag & drop encryption
- Works offline to keep documents safe without internet connection
Overall, Secret PDF provides a simple solution for securely sharing and storing locked PDF documents across different platforms like Windows 10, Mac OS X and Linux while still allowing encrypted access for authorized viewers.
Secret PDF Features
Features
- Password protect PDF files
- Encrypt PDF files with AES encryption
- Lock PDF files to prevent unauthorized access
- Available for Windows, Mac and Linux
Pricing
- Free
- Freemium
Pros
Free and easy to use
Strong AES encryption options
Works across major platforms
Cons
Limited features compared to paid options
No cloud storage or online collaboration features
Official Links
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