I am trying to use a GD-0912-U Intuos Graphics Tablet in OS X El Capitan at a public hackerspace. They will let me install any programs on the iMac, barring that Gatekeeper believes it is from a trusted developer.
I have been able to get this tablet working in Windows 7 by installing older drivers that were found online. This tablet is obviously not going to work with current Intuos drivers.
I have managed to find drivers that will likely work, but I cannot install them unless the OS believes that the app is from a trusted developer. New drivers downloaded from the Wacom website install perfectly, and show that Wacom is the official developer. It seems that the old drivers were created before Gatekeeper existed; therefore, they do not have the proper developer information.
Is there a way to alter developer information on an Apple Disk Image?
Could I take information from recent Intuos drivers and copy it into the .dmg?