Highly recommended

Acrobat has switched its model to a yearly subscription and it’s a hefty price. I had bought version 9 when I was a student so it was discounted but it was only licensed for my old Mac which recently died. Before buying from Adobe again, I read the reviews for this alternative: PDF Expert.
Certainly it is a much lighter app that doesn’t take as many resources but it is still capable of doing as much as Acrobat can. And the pricing is way more reasonable (I got it when it was the Editor’s choice here in the App Store, so I paid ~$20). I am still in a somewhat academic field so I use it to work on academic papers that I have to read. Plus rearranging forms, merging, converting other documents to forms, highlighting, annotating, signing, protecting PDFs, etc. There is no loss of quality. You can also install an iOS version (which I haven’t yet).
All in all, a great app at a fraction of a price and it won’t take as much space from your hard drive. It is stable and works great on my Mac Mini (2012) and my MacBook Pro (2015). No regrets.

antibody_x about PDF Expert – Edit, Sign PDFs