Use Widescreen (16:9) or Standard (4:3) or choose a custom size for your slides.

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

If the file size of your presentation is too large, try the following tips to make it more manageable.

In the Slide Size dialog box, select Portrait, then select OK. In the next dialog box, you can select Maximize to take full advantage of the space available, or you can select Ensure Fit to make sure …

You can change the slide size and orientation, set the paper size for printed slides, and edit headers and footers from Page Setup in PowerPoint 2016 for Mac.

To set a custom size, including width, height, slide numbering, and orientation of slides and notes, select Custom Slide Size on the Slide Size menu. To make sure your slides will print the way you want, …

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 PowerPoint for the web prints a slide, it sends an image of the slide to the printer at whatever size the printer and printer driver specify as the largest printable size. But PowerPoint for the web can’t …

In PowerPoint, learn how to change the column width or row height of a table, and how to resize and move tables.

To save specific slides as PDF, in Slides (s), enter the slide number range in From and To boxes. If you don't want to save slides, but instead only save comments, handouts, or Outline view, under Publish …