Launch Office PowerPoint that has slide numbers in it. Switch to ‘Insert’ tab and navigate to ‘Text’.There, look for the ‘Slide Number’ option. Click it to open ‘Header and Footer ...

Launch PowerPoint 2007. Click the Windows button to open the handout presentation with the page numbers to change. Click the "View" tab. Click the "Slide Master" button on the ribbon.

The ability to add footers in PowerPoint is useful for any number of reasons. You can use it to insert citations and references, notes about what you're saying, disclaimers, a company motto, or ...