Designed and developed by SecurityXploded, PDFUnlocker is a free to use application that is supported in various Windows platforms, such as Windows 2000, 7, Vista, and XP systems. You can use this tool to remove the lost passwords of your PDF documents and thereby unlock all its features. This utility is considered an ideal application for those users who have lost the password of their PDF documents and are unable to retrieve its contents. Similarly, it is also proposed to be a useful tool for forensic experts and investigators who need to unlock PDF documents to retrieve its contents and features. By removing the lost or unknown password, this tool helps you retrieve the document.