I found Preview.app always annoying. E.g., the maximize windows button not maximizing the window. Sure it is better than Adobe Reader. But there are quite a f

I found Preview.app always annoying. E.g., the maximize windows button not maximizing the window. Sure it is better than Adobe Reader. But there are quite a few very nice alternative PDF viewers better than it. And pdf.js is great as a browser plugin because opening PDFs won't disturb your browsing any more.