Print Preview also affords you the chance to add or adjust footers in your handouts and notes.
By default, printed handouts and notes have page numbers. If you want them to show other things, such as footer text, follow these steps:

Click
Options, and then click
Header and Footer.

To show footer text, such as "Draft" or "Confidential," select the
Footer option, and then type the text you want in the box. If you wanted a date, you'd select the
Date and time option and then set options in that area of the dialog box.
The selections you make on the Notes and Handouts tab in the Header and Footer dialog box apply to your handouts and your notes pages.
Tip You can set up headers and footers anytime as you create your presentation. Use the Insert tab on the Ribbon to open the Header and Footer dialog box.