PDF Password Protection - Free & Private
Add password protection to your PDFs instantly in your browser. No uploads, completely private.
Drop PDF file here
or click to browse
Your file is processed locally and never uploaded
About PDF Password Protection
Add password protection to your PDF documents to prevent unauthorized access. All processing happens directly in your browser - your files and passwords are never uploaded to any server.
Key Features
- 100% Client-Side: Files and passwords never leave your computer
- Strong Encryption: Uses industry-standard PDF encryption
- Easy to Use: Just upload, set a password, and download
- No Limits: Protect PDFs of any size your browser can handle
- Free Forever: No registration, no hidden fees
How to Use
- Select or drag & drop a PDF file
- Enter a strong password (at least 8 characters recommended)
- Confirm your password
- Click "Add Password Protection"
- Download your password-protected PDF
Common Use Cases
- Protect sensitive business documents before sharing
- Secure personal documents (tax returns, medical records)
- Share confidential information via email safely
- Prevent unauthorized copying or printing of documents
- Add an extra layer of security to contracts
Password Security Tips
- Use Strong Passwords: At least 8 characters with mixed case, numbers, and symbols
- Avoid Common Words: Don't use dictionary words or personal information
- Unique Passwords: Use different passwords for different documents
- Store Safely: Use a password manager to remember complex passwords
- Share Securely: Send passwords through a different channel than the PDF
⚠️ Important: If you forget your password, there is no way to recover the PDF. Make sure to remember or securely store your password before closing the protected file.
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