🔒 Lock PDF
Password protect your PDF files with AES encryption (Server-powered)
✅ Real Encryption: This tool uses PyPDF2 to create truly encrypted PDFs with password protection!
Drop PDF file here
or click to browse
Help & Tips
- Passwords: Add a password to restrict opening.
- Strength: Use strong, unique passwords; store safely.
- Sharing: Share passwords securely—not via plain text.
- Limits: Some viewers handle encryption differently; test outputs.
- Privacy: Server‑side; files auto‑delete. Privacy Policy.