PDF Encryptor
Add password protection to PDF files with AES encryption
The PDF Encryptor protects a PDF with a password and optional permission restrictions such as blocking printing or copying. Encrypt sensitive documents before emailing them. Encryption is applied locally in your browser.
Content reviewed: August 2, 2026
Encrypted with HTTPSProcessed in your browser
All processing runs locally in your browser. Your files and text are not sent to Tool-web's server.
Actions:
How to Use
- Upload your PDF file
- Set a user password and/or owner password
- Download the encrypted PDF
Features
- AES 128-bit encryption
- User and owner password support
- Restrict printing and copying
- Instant processing
Tips for getting PDF Encryptor right
- Send the password in a different channel than the file itself
- Restrict printing or copying explicitly instead of relying on defaults
- Keep a decrypted backup somewhere secure in case the password is lost
- Encryption stops casual access, not screenshots — keep the document's audience in mind
Real-World Use Cases
- Protecting confidential reports before email delivery
- Securing client records and personal documents
- Restricting printing or copying of a shared PDF
Frequently Asked Questions
What encryption level is used?
The tool applies AES-128 encryption using the PDF standard security handler.
What is the difference between user and owner passwords?
The user password is required to open the document. The owner password controls permissions like printing and editing.
Can I remove the password later?
Password removal is limited. Our PDF Unlocker can strip permissions restrictions, but a user password that is required to open the file cannot be removed.
Privacy & Security
Encryption is applied locally in your browser. The document and password are not uploaded or stored by the tool.
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