Save to your hard disk. Then double click to open or File Open in your favorite (Adobe, Foxit, Nitro?) pdf-reader. What happens?
When I click on a link from a webpage to a pdf file the following message appears:
Internet Explorer has encountered a problem and must close.
The following add-on was running when this problem occurred:
Add-on Name: avgssie.dll
Company Name: AVG Technologies
Description: Safe Search for Internet Explorer
So, I can't even open the sale flyer linked to the grocery store website. There are other examples, as well.