I’m referencing pdf drawings from other professionals in my Layout to final pdf drawings. Some of the images on the page are very fuzzy. I’m unclear how to best remedy these fuzzy images. I’ve had building officials complain about the occasional fuzzy image.
Are you still using SketchUp 2022 and 2021 on Ventura?
PDF get inserted as raster images. In Document Setup>Rendering you can adjust the Display and Output Resolutions to suit. Setting the Display Resolution to High might result in reduced performance while you are working in LayOut. Try it and see what you get.