On the View tab, click Slide Master. In the thumbnail pane that contains the slide masters and layouts, pick the layout that has closest arrangement of placeholders to how you want your slide to look.

Arrange slide content with different slide layouts to suit your taste and preference, or to improve the clarity and readability of the content. Select the slide that you want to change the layout for. Select …

Change the size, shape, or orientation of your slides for presentation or to simplify printing.

PowerPoint slides are automatically set up in landscape (horizontal) layout , but you can change the slide orientation to portrait (vertical) layout .

If you want to apply a defined slide layout to a particular slide, select the slide. Then, on the toolbar ribbon, select Home > Layout (or Slide Layout) and choose a layout from the gallery of options that …

To set the page orientation for all of the slides in your presentation, on the Slide Master tab, select Slide Size > Custom Slide Size. Under Orientation, select the orientation you want.

When you change the slide size for a presentation, the size you choose only applies to that presentation. You can also change the orientation of all the slides in your presentation.

In the left pane that contains the slide master and layout thumbnails, right-click the layout thumbnail that you want to rename, and then click Rename Layout. In the Rename Layout box, type the new name …

Reuse a slide master from another presentation by copying and pasting it into your presentation.

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