Drag the slider at the top of the Reduce Model Dialogue or select a percentage while closely watching the 3D model. The goal is to retain the shape of the model but reduce the amount of polygons. Reducing the model by 50% gives a final result of 19,595 polygons.
Click > OK
Right Click in Viewport and Select > Select All.
In the lower portion of the 3D Toolkit UI select the > Materials Tab.
Materials can be viewed like any file, but most people will prefer to view Materials by Thumbnails. Select > Thumbnail View.
OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.