Mac newbie: Goodreader equivalent?

Hi all,

Please forgive what is probably a very noobish question:

I started off in the Apple world with an iPhone/iPad and I love the Goodreader application on iPad for reading/adding notes to PDFs.

I really expected a Goodreader app for the mac and to be able to throw documents back / forth between devices easily. However, I can't find a goodreader app for the mac.

So, what is there out there to do what I want? I want to read PDFs and add notes on them, save the PDF and then be able to continue off where I left off on the iPad on the move.

Thanks