Protect PDF with Password
Add a password and AES-256 encryption to a PDF locally in your browser.
AES-256 encryption. Use 8–64 characters and no more than 127 UTF-8 bytes; some characters use multiple bytes. Keep the password safely; it cannot be recovered here.
The file and password stay on your device. Changing the file or password cancels processing. Password fields clear after download or when leaving the page.