Protect PDF
Lock your PDF with a password
We do not store your file or password.
About the Protect PDF
Protect a PDF with a password online to lock sensitive contracts, tax returns and personal documents. ToolsVera applies standard PDF encryption so only people with the password can open the file.
How to use the Protect PDF
- Upload the PDF: Select the PDF you want to encrypt.
- Set a password: Enter a strong password — longer than 10 characters is recommended.
- Download the protected PDF: Save the encrypted PDF and share the password securely.
Why use our Protect PDF?
- Standard PDF encryption compatible with all viewers.
- Keeps confidential documents private during email and storage.
- No watermarks or size restrictions.
- Works directly in the browser.
Frequently Asked Questions
Is this Protect PDF really free?
Yes. Protect PDF on ToolsVera is 100% free to use with no signup, no hidden limits and no watermark added to your output.
How strong is the password encryption?
We use industry-standard PDF encryption that is widely compatible with Adobe Reader, Preview and most PDF apps.
What happens if I forget the password?
There is no way to recover it — always store passwords in a manager. You can use our Unlock PDF tool if you own the file and know the password.
Can I protect a PDF with user AND owner passwords?
This tool sets a single opening password, which is what most users need to prevent access.
Is my data safe?
Yes. Files are processed on the server and automatically deleted — we never store your content.