Internet browsers have begun to include an embedded PDF viewer.  Unfortunately, this viewer isn't capable of viewing the advanced features of a PDF document. Please install and configure the free Adobe PDF Reader to be the default application for viewing PDF documents.

For Microsoft Windows->https://helpx.adobe.com/acrobat/kb/install-reader-dc-windows.html

For Apple Macintosh-> https://helpx.adobe.com/acrobat/kb/install-reader-dc-mac-os.html