You may find that if your using Google chrome, when trying to view or print invoices that the tabs within Adobe that usually allow you to print, save or perform a action that you need are missing.  This is due to Google Chrome now having its own built in PDF viewer.  When viewing PDFs in Chrome with the built-in viewer the toolbar for printing saving etc. is no longer visible.  You can Save and print through this method by right clicking on the PDF and choosing the relevant option from the menu.  However if you would like to revert back to Adobe reader then they need to disable the plugin by typing “about:plugins” into the address bar.