VERIFIED SOLUTION i
When trying print to PDF in MapInfo Pro, the Advanced Printing option "Print using Offscreen Bitmap (OSBM)" is greyed out.
This option is unavailable when the layered PDF option is selected.
ResolutionUPDATED: September 8, 2017
Printing direct to device is only option available by design.
If the option to print to Layered PDF is unchecked at PDF Preferences, "Print using OSBM" is now available.
Products affected: MapInfo Pro™