I recently bought a second hand Wacom STU-500. Unfortunately, it doesn't come with any CD but I managed to find the drivers online. The only problem is I need some software that can capture the signature from the device so I insert it on any type of document. Wacom's Software Sign Pro PDF for Windows is exactly what I need but I can't download it online so I'm guessing it's an enterprise license thing. Looking for any alternative. Thanks!