Protect PDF with Password

Add password protection to PDF files with AES-256 encryption. Set a strong password — anyone opening the PDF will need it.

Supports all languages including English, Urdu, Arabic, Hindi, Chinese, Spanish & more

Upload PDF to Protect

Click or drag & drop your PDF file | Max 100MB | AES-256 Encryption

PDF Protected Successfully!

Your PDF is now encrypted. Anyone opening it will need this password:

Save this password somewhere safe. There is NO way to recover it.

How to Protect PDF with Password

Upload Your PDF

Click or drag & drop the PDF file you want to password-protect.

Create a Strong Password

Enter a password. Use the strength meter as a guide. Supports all languages and characters.

Confirm & Encrypt

Re-enter the password and click "Encrypt & Protect PDF". Protection is applied instantly.

Download & Save Password

Download your protected PDF. Store the password securely — it cannot be recovered.

Key Features

AES-256 Encryption

Industry standard security

Strength Meter

Real-time visual feedback

All Languages

Unicode password support

100% Private

Browser-based processing

Unlimited & Free

No registration needed

Instant Processing

Encrypts in seconds

Frequently Asked Questions

How does PDF password protection work?

Your password is embedded into the PDF using AES-256 encryption. When someone tries to open the PDF, they must enter the exact password. The file cannot be opened without it. All processing happens directly in your browser — your PDF never leaves your device.

Can I use non-English passwords (Urdu, Arabic, Chinese)?

Yes! PDF passwords support full Unicode. You can use characters from any language — Urdu (پاسورڈ), Arabic (كلمة السر), Hindi (पासवर्ड), Chinese (密码), or any combination. The encryption works identically regardless of the characters used.

What happens if I forget my password?

Unfortunately, there is no way to recover a lost PDF password. This is by design — the encryption is meant to be secure. Always store your passwords in a password manager or safe place.

Can I remove the password later?

Yes! Use our Unlock PDF tool. You'll need to provide the current password to remove the protection and get an unprotected PDF.