Upload the PDF you want to protect from your device.
Choose a strong password. Share it only with people who should open the file.
Click Protect. Download the locked PDF when processing finishes. Each file stays available for up to 5 downloads.
Add a password so contracts, IDs, and reports stay closed to anyone without the key.
Protect PDFs online without installing desktop PDF software.
Compress or merge first if needed, then protect the final file before you send it.
Use password protection for sensitive attachments, shared drives, and any document that should not open by default on someone else’s device. Remember the password. Without it, recipients (and you) may need Unlock PDF later.
Prefer a long, unique password and send it through a different channel than the PDF itself. Protection helps against casual access; it is not a substitute for secure storage of highly confidential material.
It adds a password so opening the PDF requires that password. People without it cannot read the file in normal PDF readers.
Yes, if you still know it. Use Unlock PDF with the same password to create an unprotected copy.
Compress first when size matters, then protect the final PDF so you lock the version you intend to send.
No. Layout and content stay the same; only access to open the file changes.