Outlook 2010 pdf, I only see first email

I backed up a bunch of emails into a pdf.  With my old version of Acrobat Pro, I could call up the pdf and see all the emails.  Now with Acrobat Pro XI, I can only see the first email.  How can I see the other emials that I know are there b/c the pdf is almost 900 megs in size.  What gives? 

Thanks,