Protect PDF
Encrypt your PDF with a password (AES-256). Your file never leaves your device.
Your files never leave your device. Everything happens in your browser.
What is Protect PDF?
Protect PDF is a free online tool that adds a password to a PDF using AES-256 encryption. Choose whether people who open it may print, copy or edit. Your file and your password never leave your device.
How to use Protect PDF
- Choose your file. Select the file from your device or drop it onto the page.
- Adjust the settings. Use the side panel to set the options for Protect PDF. You can leave the defaults if they suit you.
- Download the result. Press "Protect PDF" and download your file. Many results can be downloaded together as a ZIP.
Questions about Protect PDF
Is Protect PDF really free?
Yes. Protect PDF is completely free. There is no sign-up, no watermark and no daily limit.
Are my files uploaded when I use Protect PDF?
No. Protect PDF runs inside your browser, so your files stay on your device and are never sent to our server.
Can you recover my PDF password if I forget it?
No. The password is never sent to us, so it cannot be recovered. Keep it somewhere safe, because nobody can open the file without it.
What are the limits of Protect PDF?
You can use one file at a time, each up to 100 MB. Very large files depend on your device's memory.
Does Protect PDF work on a phone?
Yes. It works in any modern browser on Android, iPhone, Windows, Mac and Linux. Nothing needs to be installed.
Protect PDF kaise kare? (Hindi)
Upar 'Choose file' dabakar apni file chuniye ya use page par drop kijiye. Zarurat ho to side ke options badaliye, phir 'Protect PDF' dabaiye aur result download kijiye. Aapki file server par upload nahi hoti.