How to Change the Size and Shape of a Presentation in Keynote

Difficulty - Easy

Step 1 - Open The "Presentation Menu"

Select the presentation's title in the top left to open a drop-down menu.

Step 2 - Navigate to "Presentation Options"

Tap the option in the drop-down menu titled: "Presentation Options"

Step 3 - Presentation Setup

Select presentation setup under the "Presentation Options" menu.

Step 4 - Document Slide Options

On the bottom of the screen, select the "Slide Size" option to change the proportions of the presentation.

Step 5 - Choose a New Size and Shape

Select the size and shape desired, or create a custom one.