How to use this tool
- Choose a PDF.
- Enter and confirm a strong password.
- Encrypt and download the protected PDF.
Secure & finish
Protect PDF
Encrypt a PDF with a password directly in your browser.
- ✓Local processing
- ✓No sign-up
- ✓Files never uploaded
Local processing
Protect PDF
No sign-upFiles never uploaded
Drop files here or choose from your deviceUp to 50 MB per file
Selected files
Files never uploaded
Working…0%
Your result
What this tool does
Set a user password and optional owner password. Encryption happens locally, and the password is never transmitted or stored by HugPDF.
Your files stay with youDocument processing runs locally in your browser. We do not receive, store or inspect the files you select.
FAQ
Frequently asked questions
Can you recover a forgotten password?
No. Keep the password safely; it is never sent to us.
Is the original file changed?
No. A new encrypted copy is created.