Does PDF Editing Tools store my password?

No. The password is used locally to encrypt the file and is never transmitted or saved.

What happens if I forget the password?

PDF Editing Tools cannot recover it. Keep your password somewhere safe before closing the tab.

Does this work on a PDF that is already encrypted?

Not directly — unlock it first with its current password using Unlock PDF, then protect the unlocked copy with a new password.

Password-Protect PDF Without Uploading

When to use Protect PDF

Use this before emailing or sharing a document that contains sensitive information — financial statements, contracts, medical records — so it can't be opened without the password. Share the password through a separate channel from the file itself.

How to Password-Protect a PDF

Select a PDF.
Enter and confirm a password.
Check the password strength indicator.
Export the encrypted copy.

What this tool changes

Encrypts the document so a password is required to open it.

What it preserves

All page content and structure — only access protection is added.

Good to know

PDF Editing Tools does not store your password. If you forget it, the password cannot be recovered.
Reader compatibility for the strongest encryption modes can vary by PDF viewer.
Password protection restricts opening the file; it is not equivalent to enterprise DRM.

Frequently asked questions

Does PDF Editing Tools store my password?: No. The password is used locally to encrypt the file and is never transmitted or saved.
What happens if I forget the password?: PDF Editing Tools cannot recover it. Keep your password somewhere safe before closing the tab.
Does this work on a PDF that is already encrypted?: Not directly — unlock it first with its current password using Unlock PDF, then protect the unlocked copy with a new password.