Protect Your PDF with a Password

Need to keep your PDF files private? You can add a password in seconds using our free online tool. No software to download. No account to create. Just upload your PDF, enter a password, and download the protected file.

Our tool is designed to be simple. It works on any device. Whether you’re on a computer, tablet, or phone, you can use it to keep your documents safe. This is the easiest way to lock your PDF so only people with the password can open it.

How It Works

Here’s how to protect your PDF with a password:

1. Go to passwordprotectpdf.com.
2. Click to select a PDF file from your device. You can also drag and drop the file into the box.
3. Type the password you want to use. This is the password people will need to open the file.
4. Click the “Protect PDF” button. Our server will add password protection to your file.
5. Your protected file will download automatically. Open it, and you’ll see it now asks for a password.

We never keep your file. It is processed securely on our server, then deleted right after your download is ready.

Why Use Our Tool?

It’s Free

You can protect as many PDF files as you want—no limits, no charges.

It’s Private

Your file is encrypted on our server, then deleted right away. We do not store, log, or share any part of your file. Only you download it.

It Works on Any Device

Our tool works on computers, phones, and tablets. It runs in your browser, so there’s nothing to install.

No Sign-Up or Email

We don’t ask for your email or any personal information. Just upload, protect, and download.

Simple and Fast

There’s no setup, no instructions to read. Everything is clear and quick. Most people protect a PDF in under 10 seconds.

Frequently Asked Questions

Can I remove the password later?

Yes, you can use a different tool to remove the password if needed. Just make sure you remember the password you used.

Do you store my file?

No. Your PDF is sent to our server to be password-protected. Once it’s processed and sent back to you, it is deleted automatically. We do not store or keep any files.

Is this tool safe?

Yes. Your file is sent to our server through a secure connection. After we add the password protection, the file is removed from our system. Only you can download it.

Can I use this on my phone?

Yes. Our website works in mobile browsers. The process is the same on phones and tablets.

What happens if I lose the password?

If you forget the password, you won’t be able to open the file. We do not keep passwords or offer a way to recover them. Keep your password safe.

What Is PDF Password Protection?

Password protection adds a lock to your PDF file. When someone tries to open the file, they’ll need the password you set. Without it, they can’t read or print the document.

This is useful when sharing files that have sensitive or private content—like contracts, reports, or personal records. Even if someone gets the file, they won’t be able to view it without your permission.

Our tool uses standard PDF encryption methods to protect your file. The process happens on our secure server, then your file is deleted after you download it.