Apply Template To Existing Presentation. Click the down-pointing arrow in the New Presentation pane and choose Slide Design - Design Templates. Right-click in the right panel and select Insert All Slides.
Click on a theme to see how your presentation will look. Click the down-pointing arrow in the New Presentation pane and choose Slide Design - Design Templates. To apply a design to an existing presentation.
The slides are shown as thumbnails in the right panel.
In the pane that contains the slide masters and layouts click the layout that you want to edit. How to Apply New Template to Existing Presentation Slide What to Do Next PowerPoint 2013 1. Click the down-pointing arrow in the New Presentation pane and choose Slide Design - Design Templates. In the task pane under Open a presentation click the presentation you want.