Rhino Viewer for Client

Hello Everyone,
I have a client that is somewhat literate to computers and such. He is one of those people that know how to draw lines in autocad and how to use photoshop because he has used it since it came out.

I am a furniture maker and he is the designer. He sends me napkin doodles and I model them in Rhino and send him PDFs of front, top, side view with dims, hatching, so on.

I need to find him some sort of easy 3D viewer that can view something rhino based and maybe even be able to measure from it too. That would be awesome if it existed. This does exist for Solidworks, its a program called eDrawings. That worked great when I had it but now all I have is rhino.

Any suggestions?? Thanks!!

He can always download Rhino and use that as a viewer.

Apart from that, there are a few plugins that could help:
IRIS (WebGL)http://www.food4rhino.com/project/iris?etx:
3D PDF: http://www.simlab-soft.com/3d-plugins/3D-PDF-from-rhino-main.aspx
… and probably more

I think I figured something out. After posting this I saw that this question has been asked too many times. I saw that Rhino can export to a sketchup file. Sketchup is easy and free. I am going to try that do that unless there is something better and free.