Andrew, Thanks for the clarifications. I think it would have been a good idea that the measure tools been enabled in Acrobat Reader without the ``Enable Usage Rights In Adobe Reader`` turned on for 2D georeferenced PDF. Maybe one…

Patrick, By default, a 3D PDF created by MicroStation has some restrictions. In MicroStation V8i, there is an option to set the PDF driver's property Enable Measuring to ON. This property can be set in the Printer Driver Configuration…