Question 1

Is my PDF file uploaded to any server?

Accepted Answer

No. Everything happens 100% in your browser. Your PDF never leaves your device — no uploads, no cloud processing, total privacy.

Question 2

What type of encryption does Protect PDF use?

Accepted Answer

Protect PDF uses AES-128 encryption, the standard supported by all major PDF viewers including Adobe Acrobat, Chrome, and mobile apps.

Question 3

What is the difference between Open Password and Owner Password?

Accepted Answer

Open Password blocks opening the file without a password. Owner Password restricts actions like printing, copying or editing while still allowing the file to be viewed.

Question 4

Can I unlock a PDF without knowing the password?

Accepted Answer

No. The unlock tool requires the correct password. It is designed for users who own the PDF and want to remove restrictions — we do not support bypassing unknown passwords.

Question 5

Will unlocking remove all restrictions?

Accepted Answer

Yes. The Unlock PDF tool removes both the open password and any permission restrictions, producing a fully unrestricted PDF.