Protect PDF
About Protect PDF
Add a password so only people who know it can open the PDF. It is locked with strong AES-256 encryption.
How to use it
- Choose your PDF.
- Type a password twice.
- Click the button and download your locked PDF.
Why use PDF Editor Kit
- Strong AES-256 encryption.
- The password never leaves your device.
- No account needed.
Questions
How do I put a password on a PDF?
Choose the PDF, type a password twice and click the button. The new PDF asks for the password when it is opened.
What if I forget the password?
We cannot recover it, because it never leaves your device. Write it down somewhere safe.
Is it really free?
Yes. There is no sign-up, no limit on how many files you use and no watermark added to your result.
Are my files uploaded to a server?
No. This tool runs inside your browser, so your file never leaves your device. You can read the details on the privacy page.
More PDF tools
Also available as a free app for Android, Windows and Mac: see downloads.