Protect PDF with Password
Encrypt a PDF with a password.
Runs locally in your browser. No signup.
How it works
- 1 Select your PDF file(s).
- 2 Choose options (pages, order, quality, etc.).
- 3 Download the result.
This will encrypt the PDF so it prompts for a password when opened.
FAQ
How strong is the encryption?
It typically uses AES encryption (128-bit or 256-bit), which is very secure.
Can I restrict printing or copying?
Some tools allow setting permissions like preventing printing, copying, or editing.
What if I forget the password?
There is no way to recover a forgotten password. Keep it in a safe place.
Are my files uploaded or stored?
No. Your files are processed locally in your browser and are not uploaded or stored by this site.