Images

To add alt text to an image in a Google Slide:

1. Right-click on the image.
2. Select Alt text from the drop-down me.

3. Write a short description in the Title field and a slightly longer description in the Description field.

Google Docs does not provide a simple way to mark an image as decorative or add null alt text. Adding a short description to the alt text of a decorative image is fine in this case.

To add alt text to an image in a Microsoft PowerPoint slide:

1. Right-click on the image, and select View Alt Text from the drop-down menu.

2. Alternatively, click on the image and then go to Picture Format > Alt Text.

3. Depending on the purpose of the image, write a description of the image in the Description field or check the box next to Mark as Decorative.

If you are a teaching assistant (TA) or staff, we suggest consulting the course instructor before writing alt text, as doing so may require subject matter expertise. This is especially true in the case of complex graphics.

Some programs can help you to search for and track accessibility errors. Microsoft PowerPoint has an Accessibility Checker that generates a list of errors.

Tip: While we encourage you to make use of accessibility checkers, this technology is not perfect and cannot flag all errors. Because of this, if possible, we recommend doing a manual review as well.

For more detailed information about the accessibility checker in Microsoft PowerPoint, see Microsoft’s Improve Accessibility with the Accessibility Checker.