The titles do not "auto run." You must first launch Adobe Acrobat Reader to access the files.
You may also download Adobe Acrobat Reader for free from www.adobe.com.
Using Acrobat Reader
After installing Acrobat Reader, double-click a PDF file to start Acrobat Reader and view the file. Or you can start Acrobat Reader first, then choose File > Open to view a PDF file.
For more help using Acrobat Reader, choose Help > Acrobat Guide from within Acrobat Reader.
Most files are best viewed at 100 or 125 percent. You should set the view at the rate best suited for you.
For support for using Adobe Acrobat Reader go to the support section at www.adobe.com.