Change the slide layout in Keynote on Mac 1) Select the slide you want to change from the Slide Navigator on the left. 2) Once you select the slide, click Format on the top right to open the Format Sidebar. 3) Under Slide Layout at the top, click the Change Master button. 4) Choose one of the new layouts and your slide will instantly change. Click to see full answer. Just so, how do you change the slide style in Keynote? Change the presentation theme Choose File > Change Theme (from the File menu at the top of your screen), then select a new theme. Deselect the “Keep your style changes” checkbox if you want the new theme styles to override your style changes. Click Choose. how do I change from landscape to portrait in keynote to print? To switch to landscape mode before printing a document, open the Page Setup dialog box (File, Page Setup), then select the option you want (Portrait or Landscape) by clicking on one of the icons in the Orientation Section. Subsequently, question is, how do you change slide size in Keynote? Change the slide size Click the Document button , then click the Document tab. Choose a slide size from the Slide Size pop-up menu. If you chose Custom Slide Size, enter the slide dimensions, then click OK. How do I make a keynote slide vertical?Somewhere in the sidebar you should see a “Slide Size” section. Click the drop-down menu and select “Custom Slide Size”. Here you can enter the number of pixels vertically and horizontally that you want.