Reader is not maintaining view settings when opening PDFs in Outlook

[JessicaEl]

When I open a PDF file directly from my computer, the PDF viewer opens exactly how I want (I don't want any frills, I just want to see the document and nothing else). My co-workers and I email each other PDF documents constantly however, and when I open a PDF in Outlook, the "Page Thumbnails" sidebar is always open and no matter what I try, I cannot make it stay away. Only documents opened in Outlook are affected. Anyone have any ideas how to make it stick there?

[JR Boulay]

This is an Outlook setting, you should open PDFs with Acrobat Reader.

[JessicaEl]

The documents ARE opening in Acrobat Reader. I'll clarify - if I click on a PDF document and open it in the Reader from my own computer folder, it opens with the view settings I want to maintain. If I click on a PDF attachment in Outlook and it subsequently opens in the Reader, the view settings are different. Does that make sense? 

[JR Boulay]

It's very strange…
I don't use Outlook, I can't help you further.