Encrypt PDF
Password protect PDF files. Add encryption and set permissions.
Upload PDF File
About This Tool
Encrypt PDF adds password protection and encryption to your PDF documents. Set user passwords to prevent opening, and owner passwords to control permissions like printing and copying.
Choose from different encryption levels (128-bit or 256-bit AES) for varying security needs.
All encryption happens in your browser, ensuring your passwords and documents remain private.
How to Use
Upload Your PDF
Drag and drop your PDF file or click to select.
Set Passwords
Enter user password and/or owner password. Configure permissions.
Encrypt and Download
Click Encrypt to secure your PDF and download.
Use Cases
Confidential Documents
Protect sensitive business documents.
Personal Files
Secure personal documents like tax returns.
Controlled Distribution
Limit what recipients can do with documents.
Frequently Asked Questions
What's the difference between user and owner passwords?
User password prevents opening; owner password controls permissions.
What encryption is used?
128-bit or 256-bit AES encryption options are available.
Can I set permissions without a user password?
Yes, you can set an owner password only to control permissions.
Related guides
HIPAA-Compliant PDF Editor: What Actually Matters
What HIPAA requires for PDF tools handling PHI, why local browser processing fits, which features matter (encryption, redaction, audit trails), and what a BAA covers.
Portable PDF Editor: Edit PDFs on Any Machine, No Install
The modern portable PDF editor is your browser: full editing on any computer - borrowed, locked-down, or yours - with nothing installed. Plus the USB workflow.