Image Quality: Inserting PDF Object into Drawing

SW 2015 sp5.0

I cannot share files.

When inserting a  PDF into a drawing to be presented the image quality of the pdf leaves something to be greatly desired. I want to have each sheet of the pdf for each sheet of the .sldrw file. Anyone know of a way to increase the quality of the displayed image?

I thought it would resolve when saving the whole real drawing to pdf but it doesn't.