This app is for TDM version 3.501 or higher. If you are using a older version you need to install version 1.28 of the TDM app which is available in the TDM Designer as download. Digital signage is a digital technology that uses screens to replace traditional (print) media. Screens are utilised to provide targeted information, entertainment and advertising. The focus is always on sending the right content with the right advertising on the right screen at the right time to the right viewer. It do