Dave,
That PDF may have originally been a raster image (JPEG, TIFF, etc.). Unfortunately there is not much we can do with that. We do not have any content like that is SmartDraw. You could try drawing the chassis layout using the shape and line tools, but that would be your only alternative using SmartDraw, unless you could obtain a higher quality image of the truck chassis somehow.
Regards,
SmartDraw Support