Protect PDF
Add a password to a PDF so only people with the password can open it. Encrypted securely, right on our server.
Select PDF
or drop files here
How to password protect a PDF
- 1Select or drop the PDF you want to protect.
- 2Choose and confirm a password.
- 3Click Protect PDF and wait a moment.
- 4Download your password-protected PDF.
Why use this tool
- Add a password so only authorized people can open the file.
- Encrypt sensitive documents before sharing them.
- Processed securely on our server and never stored.
- Free to use with no signup.
Frequently asked questions
Is protecting PDFs free?
Yes. ToolPT's PDF protector is free to use with no signup.
What if I forget the password?
Keep your password somewhere safe — an encrypted PDF cannot be opened without it, and we don't store it for you.
Is my file safe?
Your file is processed securely and never stored, and your password is never saved.