PDF Password Protect & Encryption
Add a password to a PDF with AES-256 encryption, right in your browser.
PDF Security
How to Password Protect a PDF
Add a password to bank statements, contracts or ID documents before you send them. The PDF is encrypted with AES-256 and will not open without the password.
- 01
Select PDF Document
Choose the PDF you want to protect. It stays on your device.
- 02
Set a Password
Type the password that will be needed to open the file. A long passphrase is much harder to guess than a short word.
- 03
Export Encrypted PDF
Download the protected PDF. Keep the password somewhere safe, because it cannot be recovered from the file.
Frequently Asked Questions
Answers about this tool.
How do I add a password to a PDF file?
Upload your PDF in the Protect tab, type your desired password into the password field, and click Protect PDF.
Is my password sent to any remote server?
No. The PDF is encrypted inside your browser, and neither the file nor the password is sent to a server.
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