In some cases, the content author will want to change the thumbnail image to an updated picture. When creating a presentation, the thumbnail image will always originally start off as a preview image of the first slide.
How to change a presentation's thumbnail image:
- Navigate to the presentation and click Edit
- Under the preview of the thumbnail image, click Change Thumbnail Image
- Click Choose File
- Select the image file you wish to upload from your computer
- Click Close
- Click Save
*Note: This change does not affect any of the slide images.