Select the Viewport
go to the "Properties" (Ctrl+F)
go to the "Rendering" page
pick the Rendering mode and settings.
In the Selection Info palette
expand "Camera" and "Render"
In the "Camera" section, choose the "Render Quality",
in the "Render" section, choose the "Render Type" and "Render Mode".
Rendering too many viewports can degrade the performance of the program. Once you're satisfied with the render in paperspace, you should check "Render for Print Only". The viewport will show as a wireframe, but print at the render settings specified.
Designer, Deluxe, (Professional, Expert, Basic), Platinum
Windows 10 Pro (1803), 64-bit