Password Protect Your PDF — Free, Secure & Private
Protecting a PDF with a password keeps confidential documents safe when you email or share them. This tool uses industry-standard 256-bit AES encryption — the same strength trusted by banks and governments — so your file can only be opened by someone who knows the password. Your document is processed on our secure servers and deleted the moment the operation finishes. There is no signup, no watermark and no limit. Simply upload your PDF, choose a strong password, and download the protected version. Anyone who tries to open it will be prompted for the password first, keeping your contracts, statements, reports and personal records private.