Encrypt PDF
Password protect PDF files. Add encryption and set permissions.
Drag and drop files here, or click to browse
or
Drag and drop a PDF file here, or click to browse.
Designed for Trust and Speed
PDFRunway handles your documents locally, keeping data secure and processing lightning-fast.
Easy to Use
Simple 3-step processes designed for speed, clarity, and non-technical users.
Fast & Reliable
High-performance local compilation keeps processing fast, secure, and responsive.
100% Secure
Your documents never leave your browser. Zero uploads, 100% client-side privacy.
Works Anywhere
Access the full suite on any browser, system, desktop, or mobile device.
How to Use
Follow these three simple steps to process your file in seconds.
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.
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.
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
Have questions? Find quick answers about this tool here.
User password prevents opening; owner password controls permissions.
128-bit or 256-bit AES encryption options are available.
Yes, you can set an owner password only to control permissions.