The previous pages are in Adobe Acrobat pdf format in order to maintain their intended layout for handouts. Only the first (or only) page is showing. To access all pages (for enlarging and copying, etc.), you will need to download the FREE Acrobat Reader from Adobe (unless it's already installed in your system). Then just click on the blue file name at the bottom of the first page. You may see the "Acrobat Exchange" application loading, then the pages will display.