Add vertex to polygonal pdf clip

[csevers]

I have a pdf xref with a polygonal clip applied. I'd like to change the shape of the clipping area and need to add vertexes to do so. 

How can I add a vertex to a polygonal pdf clipping?

Usually I can just select a vertex and pressing crtl will cycle through add vertex, remove vertex, and if it's a line segment, change to an arc. When I select the vertex of a polygonal vp clip I can't do this. 

[Nik-D]

As far as I am aware your options are limited if you use a Polygonal clipping line. What you can do is us a polyline instead and use that as the clipping line. That way if you want to edit the line you can and then remove the clipping line from the PDF and reassign the edited clipping line.

HTH