Overview
This section covers best practices for adding alt text and ensuring the accessibility of images in PowerPoint .
Alt text stands for Alternative text. It serves three purposes:
- Enables screen readers to convey image meaning to users with visual impairments.
- Displays in place of an image if it fails to load.
- Helps users understand content.
PowerPoint Templates
Take the guesswork out of whether your titles are accessible or not. Use the templates below with list styles that are already digitally accessible.
Download the General PowerPoint Template
Download this accessible PowerPoint template. Please use the tools available in PowerPoint to create consistent and digitally accessible materials. Follow the best practices shown in the video below.
Download the Teaching PowerPoint Templates
If you are teaching at the College of Medicine, please download this accessible PowerPoint template that is specifically set up for teaching presentations. Please use the tools available in PowerPoint to create consistent and digitally accessible materials. Follow the best practices shown in the video below.
Does My Image Need Alt Text?
To decide if an image needs alt text, ask yourself:
- If I removed this image, what text would I add instead?
- What is the purpose or function of this image?
If the image serves no purpose or wouldn’t change the meaning of the document if removed, mark it as decorative.
Click the button to learn how to write alt text.
Add Alt-text in PowerPoint
Images that convey content or function need Alt Text so screen readers can describe them to users with visual impairments.
For a Mac
- Right-click the image.
- Select View Alt Text.
- Or, click the Alt text button in the toolbar.
Write your alt text
Add a brief description of what the image shows. Refer to How to Write Alt Text, if you need help.
Approve alt text
When you have completed writing your alt text, toggle the Approve Alt Text button.
Mark the image as decorative
If your image is purely decorative and the meaning of the document doesn't change without it, mark it as decorative.
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- A window will appear on the right side of your PowerPoint presentation.
- Either write a brief description of what the image shows or toggle the Mark as decorative button. (Marking an image as decorative tells screen readers to skip it, ensuring users know they aren’t missing important content.)
- Then, toggle the Approve alt text button to remove the statement AI-generated content may be incorrect.
In some instances, PowerPoint may have auto-generated suggested alt text. Always read read the text first to ensure it is correct, clear, and describes the image accurately. This is particularly important for medical images.
For Windows
- Right click on the image and a popup menu will appear.
- Select Edit Alt Text.
Mark your image as decorative
If your image is purely decorative and the meaning of the document doesn't change without it, mark it as decorative.
Write your alt text
Add a brief description of what the image shows. Refer to How to Write Alt Text, if you need help.
Approve the alt text
When you have completed writing your alt text, toggle the Approve Alt Text button.
- A window will appear on the right side of your PowerPoint presentation.
- Write a brief description of what the image shows or toggle the Mark as decorative button. (Marking an image as decorative tells screen readers to skip it, ensuring users know they aren’t missing important and content.)
- Then, toggle the Approve alt text button to remove the statement AI-generated content may be incorrect.
Best Practices
- Keep the alternative text short (less than 150 characters) and use proper punctuation.
- Adjust alternative text so it is meaningful within the context of the content the image is used with.
- Use visible text such as a caption for information meant for everyone, e.g., image copyright/attribution.
- Do not begin the alternative text with phrases such as image of, photo of, or graphic of as assistive technology automatically announces images.
- Do not repeat information that is already provided in nearby text.
- Do not use Square or Tight, or the image will be skipped by screen readers.
Need assistance?
Contact the College of Medicine Digital Accessibility Team if you have questions or need one-on-one support or additional training.
Contact the Digital Accessibility Team