Use PDF Unlocker Tool that is one of the best PDF unlocker utility tools to unlock the secured PDF files and remove restrictions within no time. It is the safe and convenient software to remove the password protection from the PDF file with no effort. You can easily use this application without Adobe Reader installation and get amazing results in less time.

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Please suggest the best tool to unlock multiple PDF files at the same time.

Locked PDF files can be irritating when print, copy, or edit options are blocked. I would first avoid online PDF unlocker sites if the file has private or office data.
For this type of work, I tried DataVare PDF Total. It helps unlock PDF files so printing, copying, and editing options can be used again. The tool also shows a preview of locked PDF files before processing, which is useful when selecting the right file. It keeps PDF content like text, images, and graphs safe during unlocking. It also supports bulk PDF unlocking. If password reset is needed, the old password should be available. Keep a backup copy before starting.