PDF reader that allows user to alternate between reading on PC and on Mac I have to read a lot of PDF files and am wondering whether there is an app out there that allows me to alternate between reading on Windows PC and on Macbook Air.  I am thinking about an app that syncs all the notes and markups between devices and opens with the last page I read.  Could anyone please help?
Papers App does most of that. It is used for academic papers and can be synced via DropBox, including all notes and annotations. It does not keep track of your last read spot though.