(2020-09-09, 0:07)Cam's Bricks Wrote: Actually that is exactly what I am after. I want the same model size so the DPI and camera settings from LPub3D but I just want more of the model.
I think you misunderstood. Changing the image size (SaveWidth and SaveHeight) without changing the camera information is equivalent to resizing the PNG after the fact. Clearly that won't help.
(2020-09-09, 0:07)Cam's Bricks Wrote: The model size in combination with the zoom level I have currently is larger than the page size so I want to be able to pan that image around on the page.
That requires changing the camera-related info for LDView, and since LPub3D has that on the command line, you can't do that. (As an aside, some LDView command line arguments only work on the command line; setting them in an INI file or in the Windows Registry would have no effect, even if those command line options were omitted on the command line.)
Based on David's post, SaveWidth and SaveHeight are both specified on the command line by LPub3D. Also specified is the camera angle (0.1 degrees), and the camera globe (including distance). That distance (along with the camera angle) determines the effective zoom level in LDView. You could in theory set ModelCenter to pan, but you'd have to figure out the value you want on your own.