Howdy,
Can you be more descriptive? Are you running into a problem or are you having trouble finding documentation? Providing as much info as possible helps you to get a faster answer. I think this answers your question.
Basically, throw your graphs into a view. When your view looks complete, click 'action' and 'schedule for PDF delivery'. This is grayed out unless you have a PDF server set up. If you haven't set up the PDF server yet:
http://www.splunk.com/base/Documentation/latest/Installation/ConfigurePDFprintingforSplunkWeb
To schedule the PDF delivery via email:
http://www.splunk.com/base/Documentation/latest/User/ScheduleDeliveryofDashboardPrintoutsviaEmail
