Protect PDF
How the PDF Password Protection Works
1οΈβ£ Upload your PDF
Select or drag-drop a PDF file. Processing is done in your browser β no file is uploaded to any server.
2οΈβ£ Enter a password
Type a strong password. AES-256 encryption is applied to protect your document.
3οΈβ£ Download protected PDF
Click Protect and download your password-protected PDF instantly.
Frequently Asked Questions
What type of password protection is applied?
A user password (open password) is applied β the PDF requires the password to be opened.
Is 256-bit AES encryption used?
Yes. Protection uses AES-256 encryption, the same standard used by banks.
Can I protect multiple PDFs at once?
Yes. Select several files and set the same password for all.
Can the password be removed later?
Yes. Use our Unlock PDF tool to remove the password if you know it.
Is my PDF content private?
Absolutely. Protection is applied entirely in your browser β the file is never sent to a server.
Why Choose Our Tool?
100% Private
Files processed in your browser or deleted from servers immediately.
Fast & Free
No registration, no watermarks, unlimited conversions.
Works in Browser
No software to install. Works on Windows, Mac, Linux, iOS and Android.