Southern New Hampshire University

Making an Accessible PowerPoint Presentation (macOS)

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Screen readers can read the elements of a slide in the order they were added; this may be very different from the order in which things appear visually on screen.  People who use a screen reader skim slide titles to navigate; they can quickly scan through a list of slide titles and go right to the slide they want. Using unique slide titles lets users clearly understand which slide they are on. Avoid using the same title for slides with spill-over information; consider including additional information such as ‘Slide Title 1 of 2.

Apply Accessible Design. 

  • Avoid all capital letters.  
  • Choose a San Serif font that is larger than 18 points.  
  • Ensure embedded or linked media is accessible.  
  • Ensure slide order is consistent with how you intend the slide to be read by others.  
  • Review the following article to learn more about How to change the reading order in PowerPoint.  
  • Remember to add a unique title to each slide.   
  • Include ample white space between sentences.  
  • Use bold font to emphasize rather than using excessive italics and underlines.   
  • Use accessible templates. Go to the Branded Assets site and select the Southern New Hampshire PowerPoint.  
  • Run the Accessibility Checker.  

How to Run the Accessibility Checker in PowerPoint

  1. Select "review" button.
  2. Select "check accessibility" button.
The home ribbon.

Describe all visual objects with an Alternative Text (Alt Text).  

  • Explain “why” the image relates to the content. The Alt Text is read aloud by screen reading software. Review the following article to learn more about How to create Alternative Text. 
The results from the accessibility checker showing the warnings and errors.
The ways that Alt. Text missing can be fixed for users.

Following this article will take you step by step on how to run the accessibility checker, and also more in-depth information on it: How to Use Accessibility Checker in PowerPoint (Desktop Mac)

How to Add Alternative Text (Alt. Text) to Images in the PowerPoint

Right click on the image.

The menu from right clicking on the image.

Select "Edit Alt. Text ..."

The right click menu with the "edit alt text" button boxed in.
  1. Type in what the photo is of. For this example of the logo, you could put "Southern New Hampshire University logo."
  2. If it is decorative, you can select the box. For this one it could be marked as decorative due to possible no relevance to the Power Point depending on what it is on.
The box to input the alt. text for the image and a "mark as decorative" checkbox.

For more information on Alt. text you can go to How to Use Accessibility Checker in PowerPoint (Desktop Mac). There is also another article about alt. text and you can go here to find it How to create Alternative Text.

How to Change the Reading Order of the PowerPoint

From the Home ribbon select "Arrange" then select "Selection Pane"

The home ribbon with the drop-down menu of the "Arrange" button.

For the screen reader to properly read the slide to the user, the reading order must go from bottom to top. In the following example, the screen reader would read the text in picture 13, text placeholder 8, and finally, title 7.

The "selection pane" window with the current order of being read to users.

Run Images That Colors can be Changed Through Color Checker


Avoid using color as the only means of representing information.   

Use sufficient contrast for text and background colors. Review the following articles to learn more about: 

Review the articles listed below for additional support:

http://www.color-blindness.com/coblis-color-blindness-simulator/

Adding Accessible Properties to Your PowerPoint

The following article explains why it is important and how to complete this How to Add Accessibility Properties to PowerPoint (Desktop Mac)

How to Add Subtitles to Your Presentation

Select the "Slide Show" ribbon.

Microsoft home ribbon with "Slide Show" boxed in

Select the box next to "Always use Subtitles."

"Always use subtitles" checkbox checked.

For more information on adding subtitles to your presentation you can go to How to Turn on Subtitles for PowerPoint (Desktop Mac)

For more info, go to Video: Create accessible slides and Video: Design slides for people with dyslexia

For more information on adding subtitles to your presentation, you can go to How to Use Subtitles in PowerPoint (Microsoft 365 Web App).

For more detailed information on creating accessible PowerPoint presentations, visit the Microsoft Accessibility Support website, or view WebAIM’s article on PowerPoint Accessibility.

For more info, go to Improve accessibility with the Accessibility Checker

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