Encrypt PDF
Secure your PDF files with industry-standard 256-bit AES encryption. Set passwords to prevent unauthorized opening or restrict printing and copying.
Upload PDF File
About This Tool
Protect your sensitive information with professional-grade security. The Encrypt PDF tool allows you to wrap your documents in 128-bit or 256-bit AES encryption, the same standard used by banks and governments.
You can apply two layers of security: a User Password to prevent anyone from even opening the file, and an Owner Password to restrict specific actions like high-resolution printing, text extraction, or form filling. It’s the essential tool for sharing financial records, legal contracts, or private intellectual property.
Zero-Server Encryption: Your passwords never leave your computer. The encryption process happens entirely within your browser, ensuring that even we can never see your password or your data.
How to Use
Upload Your PDF
Drag and drop your PDF file or click to select.
Configure Security
Enter a password to open the file and set optional permission restrictions.
Encrypt and Download
Click Encrypt to generate your secured, password-protected PDF.
Use Cases
Confidential Business
Secure internal memos and financial projections.
Personal Privacy
Protect tax returns and medical records with a master password.
IP Protection
Distribute eBooks or designs while preventing unauthorized copying.
Frequently Asked Questions
What is the difference between the two passwords?
The Document Open (User) password is required to see the content. The Permissions (Owner) password is required to change security settings or bypass restrictions like printing.
How strong is the encryption?
We use AES (Advanced Encryption Standard). 256-bit is significantly stronger and is recommended for highly sensitive data.
What happens if I forget my password?
Because we prioritize your privacy, we do not store your passwords. If you lose it, the document cannot be recovered. Always keep a secure record of your passwords.