Multi-view PDF reader (support for multiple screen views) I have two screens connected to my mac, and I would like to see different pages of the same PDF on each screen. Does Preview support this? If not, what alternatives do I have in OS X?
I am not aware of any PDF viewer which can have the same document open in two windows. 

A workaround would be to use Acrobat for the main work, and Preview for "reference", accepting that Preview may not have write rights for the document.