Several generations of OSX ago, it was possible to view PDFs full-screen in Preview, and they would automatically fit to the screen, which was great for PDF presentations (e.g. Beamer, or PDF-exported PowerPoint). Now, either when using Slideshow or Full Screen, I get these black or gray borders that I can't seem to get rid of (screenshots, first is Slideshow, second is Full Screen):
Is there any way to revert to the old style, fit-to-screen, or should I just resort to 3rd-party applications like Présentation?
Note: I am using OSX High Sierra.