Foxit PDF Editor provides the Model Tree and various navigation tools and options for you to show or hide parts of a 3D model, turn it around to view it from all orientations, even look at the inside structure clearly by hiding and turning parts around.
When you open a 3D PDF and enable the 3D model, the 3D toolbar appears above the upper-left corner of the 3D canvas (an area where the 3D model appears). In the lower-left corner of the canvas shows the 3D axes (X-axis, Y-axis, and Z-axis) that indicate the current orientation of the 3D model in the scene. Note: If the 3D model is not enabled (or activated) after you open the PDF, only a 2D preview image of the 3D model is displayed in the canvas.
Tip: For most 3D-related tools and options, you can find them from the context menu after right-clicking the 3D model.