You can display only part of a PDF Underlay. The entity is clipped at a boundary you create or specify.
You can create one clipping boundary per PDF Underlay.
To clip PDF Underlays:
Specify the PDF Underlay to which you want to apply a clipping boundary.
Click Modify > Clip > PDF Underlay (or type ClipPDF).
On the contextual ribbon, click Reference Manager > Clip.
Specify an option:
On: Turns the clipping boundary on to display only the portion of the PDF Underlay inside the clipping boundary.
Off: Turns the clipping boundary off to display the PDF Underlay entirely. The clipping boundary is retained so you can activate it again.
Delete: Removes the clipping boundary.
Create Boundary: Creates a new clipping boundary. If a clipping boundary already exists for the PDF Underlay, you are prompted to delete the old boundary. Specify options:
Select polyline: Uses an existing PolyLine as a clipping boundary. Arc segments are decurved.
Polygonal: Lets you define an irregular polygonal shape as a clipping boundary by specifying points.
Rectangular: Lets you define a rectangular clipping boundary by specifying two opposite points.