If you handle confidential documents, you need a way to encrypt PDF files online. Our free PDF encryption tool lets you quickly add password protection to your PDF documents, ensuring that only authorized users can open or edit them. No installation required, and works instantly in your browser.
Why Encrypt PDF Files?
Sensitive files like invoices, contracts, business agreements, and academic reports often contain private data. Encrypting your PDF files ensures that your information remains safe, whether you’re sharing via email, cloud storage, or messaging apps. With password protection, unauthorized people cannot open or modify your document.
Features of Our Free PDF Encryption Tool
- 🔐 Password Protection: Set a custom password for your PDF.
- 🚀 Instant Encryption: Process your PDF in seconds.
- 🖥️ Browser-Based: No software installation needed.
- 🔒 Secure & Private: Files are encrypted safely and not stored on our servers.
- 🆓 Completely Free: Use unlimited times without cost.
How to Encrypt PDF Files Online
- Click the Choose File button.
- Upload the PDF document you want to secure.
- Enter a password for encryption.
- Click Encrypt and download your protected file instantly.
SEO Content & Use Cases
Thousands of people search for “secure PDF online free” or “add password to PDF without software” daily. Students may want to protect their thesis, businesses may secure client contracts, and individuals may encrypt invoices before sending. With our online PDF encryption tool, you can protect documents anytime, anywhere.
Try It Now
Use our free PDF encryption tool today and keep your important files safe with just one click.