11. PowerPoint Presentation for Accessibility

Ben Tait and Pratik Bhawar

Reviewing your Existing PowerPoint for Accessibility

One of the most common issues for accessibility within PowerPoint is the temptation to over-design our slides.  Simplicity is key.  Not only do unnecessary imagery, transitions and animations create more work for us (because we need to mitigate their impact on accessible technologies), they can also create visual distraction and cognitive overload.  It can be satisfying to have a beautifully designed set of slides which inspire the learner’s confidence, but this should not be done in a way that creates barriers.

Simple, direct and consistent communication will support the wider range of learners, whilst also keeping things simple and time-efficient for you.

Also, while our focus here is on the creation of the resource itself, do remember to always use any amplification technology available within your teaching space, even if it feels unnecessary to you.  Those using audio-enhancement technology such as hearing aids often rely upon such systems, even within small spaces and with small groups.

Accessibility Checker

Utilize this Accessibility Checklist to ensure you’ve covered the essentials of accessibility for any new or existing document. Each item on the checklist is linked to the corresponding chapter/section, providing practical tips for further understanding and editing your documents.

  1. My presentation has a title which is meaningful to the students/users?
  2. My presentation uses correct reading order for various sections information in the slides?
  3. My presentation uses standard and easily readable fonts?
  4. My presentation has sufficient colour contrast between the text and the background?
  5. My presentation uses tables which are simple and have definite header rows?
  6. My presentation uses PowerPoint’s built-in functions for creating lists and columns?
  7. My presentation uses hyperlinks with concise and meaningful names?
  8. My presentation has alternative text for images and other visual objects?
  9. My presentation has supplementary descriptions for embedded audio/video files?
  10. My presentation passes the accessibility checker?
    • If not, please refer to the information in this chapter below.

 

Enable the Speak Feature

Enabling the Speak feature in Microsoft PowerPoint serves as a valuable preparatory step, especially when you are going to review your existing presentations with the Accessibility Checker. Speak feature, can be used to audibly articulate the text content of your presentation to verify if the texts are placed in the appropriate reading order. This preview also assists you in evaluating the effectiveness of any adjustments made based on recommendations of the Accessibility Checker.

How to do it:

  • Open the PowerPoint desktop application.
  • Navigate to the “File” tab, scroll down, and select “Options.”
  • In PowerPoint Options, click on “Quick Access Toolbar.”
Quick Access Toolbar Menu and choosing commands not in the ribbon to access the speaker function in the list
MS PowerPoint: Quick Access Toolbar Option
  • Choose the “Commands Not in the Ribbon” option from the “Choose commands from” dropdown menu.
  • Scroll down the commands list alphabetically, find “Speak,” and click on it.
  • Add the Speak feature to the “Customize Quick Access Toolbar” pane by clicking on “Add.”
  • Scroll down further, then click “OK” to confirm the changes.
Illustrates the process of adding the Speaker Function to the Quick Access Toolbar.
MS PowerPoint: Adding Speaker Function

With Speak now added to your Quick Access Toolbar, you can easily activate it for any PowerPoint document. Note that, by default, Speak is enabled for all PowerPoint documents. If the Speak button appears inactive, simply select the text you wish to be read aloud and it will be activated.

Demonstrates Speaker function to audibly articulate text content, providing a valuable screen reader perspective during the presentation editing process.
MS PowerPoint: Speaker Function

Running the Accessibility Checker

When you already have a bank of resources created and want to begin by ensuring that those resources are optimized for accessibility, the first source of guidance is the Accessibility Checker. It serves as a quick preliminary check, swiftly scanning your content to pinpoint potential accessibility issues. This initial step offers an easy and insightful analysis, guiding you toward making informed edits and improving the overall electronic accessibility of your resources.

How to do it:

  • Ensure your file is saved in the “.pptx” format. Older formats may not be compatible with the checker.
  • Navigate to the “File” menu. Under the “Info” section in the left window pane, select “Check for Issues” and then choose “Check Accessibility.”
  • A task pane will open, presenting the inspection results.
  • Select a specific issue to view additional information and follow the provided steps to rectify or revise the content.
Demonstrates accessing the Accessibility Checker tool for evaluating and enhancing powerpoint accessibility.
MS PowerPoint: Accessibility Checker

The Accessibility Checker categorizes necessary changes into three primary classifications: Errors, and Warnings. Errors denote content that renders a file challenging or impossible for individuals with disabilities to comprehend, requiring immediate attention for rectification. On the other hand, Warnings flag elements that, while not universally obstructive, can still impede the understanding of individuals with disabilities in specific cases.

Common Accessibility Errors in PowerPoint

Missing Object Description

When an object lacks a descriptive alternative, it becomes a hurdle for users relying on assistive technologies. Upon encountering an object without alternative text, the checker provides a clear directive to either “Add a description” or “Mark as Decorative“.

Accessibility Checker error indicating 'Missing Object Description.' prompting user to address this issue by providing a descriptive description for an object or mark it as decorative.
MS PowerPoint: Missing Object Description

Consider the following questions for the next steps:

1.Does your graphic serve more of a decorative purpose? In other words, is it primarily a design element that does not convey content? If so, you should:

  • avoid unnecessary text descriptions by clicking on “Mark as Decorative” option.

2.Does your graphic serve a functional purpose? In other words, is it conveying non-text content? If so, you should:

  • provide a text alternative that serves the equivalent purpose of the non-text material by clicking on the “Add a description” option.
Displays the Alt Text option for adding descriptions or marking an image as decorative.
MS PowerPoint: Alt Text

For detailed guidance on how to capture the meaning in Alt Text, see our dedicated section here: Chapter: Create Accessible Images and Other Visual objects

Missing Slide Title

One common accessibility concern in PowerPoint is the absence of slide titles, hindering proper navigation and comprehension for individuals relying on screen readers. To rectify this, ensure each slide has a clear and descriptive title.

Selecting the “Edit Slide Title” option in the accessibility checker will take you to the slide title placeholder.  Enter a concise yet informative title that encapsulates the slide’s content, and follow suite for all the slides with missing titles.

Accessibility Checker noting 'Missing Slide Title' and recommending users to edit the slide title.
MS PowerPoint: Missing Slide Title

Missing Table Header

For tables intended to convey data, it’s essential to designate header rows explicitly. When the Accessibility Checker identifies a table without a specified header row, it signals a potential challenge for users relying on screen readers. To address this error:

  • Select the “Insert Header Row” to add a new row designated as a header for the Table
  • Or else, select the “Use first row as header” to automatically designate the first row of your table as its Header
Accessibility Checker detecting 'Missing Table Header' and suggesting to insert a header row or use the first row as a header.
MS PowerPoint: Missing Ta le Header

For detailed guidance on how to create an accessible table from scratch, see our dedicated section here: Chapter: Create Accessible Tables

Accessibility Warnings in PowerPoint

Use of Spilt or Merged Cells

The “Merged or Split Cells” warning  serves as a gentle reminder to evaluate the structure of your tables for optimal accessibility. While merged or split cells might not always pose a significant barrier, they can impact the coherent interpretation of the data in your tables by screen readers.

If cells have been merged within a table, consider whether this merging is essential for the visual presentation. If not, unmerge the cells by selecting “Split cells” option and vice-versa if there are split cells in your table.

 

Accessibility Checker detecting 'Merged Cells' and suggesting to split them.
MS PowerPoint: Merged Cells in Table
Accessibility Checker detecting 'Split Cells' and suggesting to merge them.
MS PowerPoint: Split Cells in Table

For more information, and for guidance on how to create complicated tables, see this guidance from the Web Accessibility Initiative: link to W.A.I guidance (opens in new tab)

Hard-to-Read Text Contrast

The “Hard to Read Text Contrast” warning in highlights instances where text might pose readability challenges due to insufficient contrast with the background. Addressing this warning is crucial for ensuring that all readers, including those with visual impairments, can comfortably engage with your document. To address this warning:

Change Font Color: If the warning pertains to specific text elements, such as font or characters, a simple solution is to modify the font color. Opt for high-contrast combinations to ensure readability for all readers.

Accessibility Checker identifying 'Hard to Read Text on Page' and suggesting users to enhance readability by selecting high contrast colors for font.
MS PowerPoint: Hard to Read Text in Slides

If the warning specifically relates to table content, consider adjusting the shading settings. Select the option for “Shading” to view and apply the most appropriate Colour for the table.

Accessibility Checker identifying 'Hard to Read Text on Page' and suggesting users to enhance readability by selecting high contrast colors for background.
MS PowerPoint: Hard to Read Text in Table

Check Reading order

When PowerPoint’s Accessibility Checker highlights a reading order warning, it’s prompting you to ensure the logical sequence of objects on a slide for improved accessibility. To address this warning:

  • Select the option to “Verify Object Order.”
  • This action opens the Reading Order pane, allowing you to review and adjust the sequence of objects.
  • Simply drag and drop the elements within the pane to align them with the intended reading order.
Accessibility Checker prompting users to 'Check Reading Order' and verify the reading order.
MS PowerPoint: Check Reading Order
Demonstrates rearranging the elements for ensuring a logical sequence of content within the presentation.
MS PowerPoint: Adjusting Elements in Appropriate Reading Order

 

For detailed guidance on creating a logical reading order, see our dedicated section here: Using the Slide Master and Selection pane to check the reading order

Missing Audio or Video Subtitles

If the Accessibility checker detects that any media files included in the presentation are missing captions, it highlights a warning regarding missing audio or video subtitles. To address this, the tool suggests adding captions directly from your device. It’s important to note that the checker does not generate captions; you must have them ready for incorporation.

Accessibility Checker identifying 'Missing Audio or Video Subtitles' and recommending users to insert captions.
MS PowerPoint: Missing Audio or Video Subtitles

For a more detailed guide on creating accessible captions, transcripts, and audio descriptions, refer to the dedicated section here: Chapter: Create Transcripts, Captions and Audio Descriptions


Please don’t hesitate to contact us with suggestions and updates using this: email link for updates(opens in external site/application)


Reference:

  1. ED Accessibility Requirements for Electronic Documents | U.S. Department of Education.

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Creating Accessible Learning Resources: A Practical Guide Copyright © 2024 by Pratik Bhawar and Ben Tait is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

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