Google Chrome provides a simple plug-in for viewing PDF files from within the browser.  However, effective use of PDFs from certain sites commonly used for legal research (e.g., PACER, The U.S. State Department's Treaties in Force) requires printing and navigation features that the current Chrome PDF Viewer plug-in doesn't have.  Fortunately, it's easy to disable the Chrome PDF Viewer plug-in and restore the Adobe plug-in.  Here are the steps for adjusting your browser:

Go to Customize and control Google Chrome (the wrench in the upper right corner of the browser)  > Options > Under the Hood (tab) > Content settings… (button) > Plug-Ins > Disable individual plug-ins…(link) > find Chrome PDF Viewer > Disable. 

Make sure you also enable your Adobe Reader plug-in. 

– Amy Wharton