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Add password protection to your PDF files online for free. Set a password and your PDF will be encrypted with AES-256 encryption, ensuring only authorized users can access the document. Protect multiple PDFs at once, fast and secure. All processing happens locally in your browser — no uploads, no signup.
Keep your sensitive documents secure with enterprise-grade encryption.
Industry-standard encryption used by governments and financial institutions.
Set a password that must be entered to open and view the PDF.
All processing happens in your browser. Your files never leave your device.
Upload your PDF file(s) to protect.
Enter and confirm your password for each file.
Download your password-protected PDFs.
Understand why protecting your PDFs is essential for security.
Prevent unauthorized access to sensitive documents, financial records, and personal information.
Meet regulatory requirements for data protection in industries like healthcare, finance, and legal.
Know that your documents are secure even if they're accidentally shared or intercepted.
Demonstrate your commitment to security by protecting client and business documents.
Discover more free online PDF tools to manage, convert, and secure your documents.
PDF protection adds a password to your PDF file, requiring anyone who wants to open it to enter the correct password. This prevents unauthorized access to your document and keeps your sensitive information secure.
We use AES-256 encryption, the industry standard for secure document protection. This is the same encryption used by governments and financial institutions worldwide.
Yes! You can upload and protect up to 20 PDF files simultaneously. Each file can have its own password or the same password for all files.
Yes, you can unlock the PDF using the same password with our Unlock PDF tool (coming soon).
Yes, completely free with no signup required. All processing happens locally in your browser.
No! All processing happens entirely in your browser. Your files never leave your device, ensuring complete privacy.
Use a strong password with at least 8 characters, including a mix of uppercase and lowercase letters, numbers, and special characters for better security.
PDF passwords cannot be recovered. Make sure to store your password securely or use a password manager.