Protect PDF with a Password
Encrypt your PDF and require a password to open it. The ultimate security for your sensitive documents.
Drag & drop your PDF here, or click to select
100% Private
Your unencrypted file is never uploaded. The entire protection process happens securely in your browser.
Strong Encryption
We use strong AES encryption to ensure your document cannot be opened without the correct password.
Instant Protection
Secure your sensitive document and download the new, encrypted file in just a few seconds.
How to Password-Protect a PDF
1
Upload Your PDF
Select the confidential PDF you wish to protect by dragging it into the toolbox above.
2
Set a Strong Password
When prompted by your browser, enter a secure password. Make sure to remember it!
3
Protect & Download
Click the "Protect PDF" button. Your new, password-protected file will be ready to download.
Frequently Asked Questions
Is this process actually secure?
Yes. This is the most secure way to add a password. Because your unencrypted file is never uploaded to a server, there is zero risk of interception. The encryption happens locally on your computer before the download begins.
What happens if I forget the password?
Due to the strong encryption we use, there is absolutely no way to recover a forgotten password. Please make sure you store your password in a safe place, as we cannot help you open the file if you lose it.