Password Protect PDF Online Free
Secure your PDF documents with password protection. Add a password to prevent unauthorized access to your sensitive files. Strong encryption keeps your documents safe.
Drag & drop your PDF file here or Choose File
Maximum file size: 50MB
How to Password Protect a PDF
- Upload your PDF — Select the PDF file you want to protect.
- Set a password — Choose a strong password (4-128 characters).
- Confirm password — Re-enter the password to confirm.
- Download protected PDF — Get your encrypted PDF file.
Frequently Asked Questions
We use AES-256 encryption, which is industry-standard and considered highly secure for document protection.
Yes, use our Unlock PDF tool to remove the password. You will need to provide the correct password to unlock the document.
A strong password is at least 8 characters long and includes a mix of uppercase letters, lowercase letters, numbers, and special characters.
