Use these techniques to make the charts, graphs, and images in your PowerPoint slides accessible to users with a vision or reading disability.
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Tips for improving image accessibility
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In addition to color, use text, patterns, or shapes to communicate ideas.
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Add descriptive alt text to pictures, charts, and other visual objects.
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Group layered images, like a picture with callout lines, into a single object.
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To get an idea how your slides might look to someone who’s colorblind, use the color filters feature in the operating system.
Add alt text to a chart, picture, or other visuals
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Right-click a chart, picture, or other visual object, and select Edit Alt Text.
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In the Alt Text pane, type a description for the object.
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Add information about the slide and its visual content to the presentation notes underneath the slide.
Note: To display the Notes field, select View > Notes.
Group layered images
To make sure that the screen readers can make sense of layered images, group them into one single image.
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To select the images you want to group, press and hold Shift and then click each image.
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Select Format > Group > Group.
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Add alt text to the grouped image.
Use color filters
Windows: Enable the grayscale color filter in the Windows settings:
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Select (Start) > (Settings) > Ease of Access > Color filters.
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Switch on the Turn on color filters option.
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In the Select a color filter to see elements on the screen better list, select Grayscale.
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Visually scan each slide in your presentation for instances of color-coding.
Mac: Enable the grayscale color filter in the Mac settings:
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Select System Preferences > Accessibility > Display > Color Filters.
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Select Enable Color Filters.
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In the Filter type list, select Grayscale.
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Visually scan the slides in your presentation.
In older versions of MacOS, select System Preferences > Accessibility > Display.
Want more?
Everything you need to know to write effective alt text
Make your PowerPoint presentations accessible to people with disabilities