By default, PowerPoint slides use a widescreen format in a 16: 9 ratio. If you want to change it to standard format (4: 3 ratio), or even create a custom size, PowerPoint provides a quick and painless way to make it happen.
Resizing PowerPoint Templates
Changing the size of the images in PowerPoint affects how they appear during the current presentation and how they are displayed on the dividends. Go ahead and open the presentation that we will resize and select the "Design" tab.
Then click on the "Slide Size" button.
] A menu is displayed so you can choose between "Standard" (4: 3) or "Widescreen" (16: 9). If you switch to the default format without any other changes, you can select it from the menu and the changes will take effect. If you want to make a small custom tweaking to customize the size of your specific needs, then select "Custom Slide Size."
In the Image Format window that appears, click the box under "Image Size for" (1), a menu opens with several options. Choose the one that best suits your needs. Alternatively, you can customize the dimensions of the images by specifying the image size in the "Width" and "Height" boxes (2). Finally, you can select the orientation of your images and dividends by selecting "Portrait" or "Landscape" (4) in each section.
When you are satisfied with the installation, click "OK".
If this is the size you want to use for future presentations, then save this theme and select it for the next presentation. Back on the "Design" tab, select the "more" arrow, which you will find at the bottom right of the "Themes" group.
At the bottom of the menu shown, select "Save current theme".
Windows Explorer now appears and prompts you to name and save your theme. Go ahead and rename it, but do not change the location where it will be saved. Themes saved on this default site are available with a mouse click on PowerPoint's splash screen. When done, click "Save".
Let's make sure it is saved. Continue and shut down your current PowerPoint presentation and open PowerPoint again – this time as a blank presentation. Select "New" in the left pane.
Select "Custom" near the top of the window.
If saved properly, your theme will be shown here.
Choosing your custom theme opens a new presentation with all your saved settings.