You can add slide numbers to individual slides or your entire deck. There are two ways to add slide numbers. Select one or multiple slides and either:

The slide numbers will appear in the bottom-right corner. If you are on the Starter plan, the Pitch logo that appears in PDF exports will move to the bottom left-hand corner of your presentation.

Slide numbers take on the settings of the small text style. You can edit the style of your slide numbers by changing the small text style of your slide style.