How do I open *.pdf files in Microsoft® Internet Explorer on my computer running Mac® OS?
Download the latest version of Acrobat Reader that is available for your system from
www.adobe.com.
After installing the application, locate the PDFViewer plug-in that is included with Acrobat products. Move the PDFViewer file from the Adobe Acrobat Web Browser Plug-in folder into the Internet Explorer: Plug-ins folder.
Note: Before you can use the plug-in, you need to make sure that Acrobat is deselected as a helper application in Internet Explorer.