Problem Description

When using the Bluebeam PDF reader the 3D PDF file looks like a mirrored or reversed
image of the originally provided MicroStation PDF file.

Reason

This problem was encountered using Bluebeam, version 9.0, which was their first
version to display 3D PDF files.

Bluebeam's latest version now solves the problem of having X&Y axes reversed
in the 3D PDF.

Steps to Resolve

Upgrade to the latest version of Bluebeam reader s/w.