Protect PDF
Encrypt a PDF with a password.
Drop a PDF here or click to browse
PDF up to your plan limit
Add a password to your PDF in seconds. Our Protect PDF tool lets you password protect PDF files with strong encryption, so only people who know the password can open and read them.
How it works
- 1
Upload your PDF
Select or drag and drop the PDF file you want to secure.
- 2
Set a password
Choose a strong password that will be required to open the document.
- 3
Download protected PDF
Run the tool and download your newly encrypted PDF right away.
Why use this tool
Strong protection
Your document is locked with industry-standard AES encryption to keep its contents private.
Fast and simple
Encryption happens in just a few seconds, with no waiting around.
Control who opens it
A password is required to open the file, so you decide exactly who can access it.
Nothing to install
Everything works in any browser, with no software or sign-up needed.
Frequently asked questions
What encryption is used to protect the PDF?
We use strong AES-256 encryption, the same standard trusted to encrypt PDF files in professional and enterprise settings.
What happens if I forget the password?
We do not store your password anywhere, so we cannot recover it for you. Be sure to save it in a safe place, because a lost password means the file cannot be opened.
Is my file safe on your servers?
Yes. Files are processed securely on our servers over an encrypted connection and deleted automatically right after processing.
Can I still share the protected PDF normally?
Absolutely. Once you password protect a PDF, you can email or share it as usual, and anyone you give the password to can open it.
Will protecting the PDF change its content or quality?
No. We only add an encryption layer, so the text, images, and formatting of your document stay exactly the same.