If you're are looking for more nice presentation features for Pdf-files, you may check out MagicPresenter (https://apps.apple.com/us/app/magicpresenter/id6569250589). It allows you to add presenter notes to PDFs and view them in presenter mode during your presentation. You can even scribble "magic" annotations directly on your slides. These are only visible to you. I found this super handy for remembering what I want to say.