Download topaz sigplus software and drivers. Click on the displayed 'Download GemView Software' icon to begin. Plug your ePad signature pad into a USB port on the PC.Topaz Devices Supported in E-Signature Many of our e-signature clients will be happy to hear that we are nearing completion of testing new functionality! We’ve been working with Topaz to integrate their drivers into our e-signature capabilities to maximize the opportunities and options available in regards to signature pads used to collect Installing your ePad signature pad EPI DirectX Image Capture Plugin Version: 6. Interactive and biometric signature pads, including specialty models. Choose your signature pad model from the list and click OK. Regular image processing “filters” your photo or video through complex math operations. EPadLink® ePad® ePad II™ ePad-ink™ Wacom® STU-300.