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This table has the data labels. Now a person who has visual disabilities can still know what each category stands for without needing color. |
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Section 5.3: Long Descriptions for Complex Images, Pie Charts, and Bar Graphs
When using complex images like pie charts or bar graphs, it is better to use a long description rather than Alt Text. Alt Text is meant to be brief, while long descriptions give you a bit more freedom to explain the image. There are many ways to create a long description including:
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This pie chart is also accessible because it provides Alt Text directing the readers attention from the pie chart to the table. A reader may have a difficult time reading a pie chart, to remedy this, create a table underneath the chart with the same information. This will give them the ability to get the information they need. |
Additional Types of Long Descriptions
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When you use complex images, you must describe it using Alt Text and have a longer description.
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This image of the Hagia Sofia has an alt text. There is also a link to the long description that will go into more detail about what is in the picture. |
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Section 5.4: Watermarks and Backgrounds
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Watermarks and background images should not be used. They will interfere with peoples ability to read the page. Watermarks and backgrounds tend to be very distracting to most readers. It is best to use a background that does not interfere much at all with the text on the slide.
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This background does not interfere with the text and gives the powerpoint a very professional look. |
Section 5.5: Text Boxes, Shapes, and Other Floating Objects
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PowerPoint differs from Word in one very significant way: floating objects are easy to navigate and make up the very nature of the entire deck. The title field in a slide, for instance, is a text box. However, unlike in Word, where navigating text boxes with a screen reader is tedious, in PowerPoint, a user just needs to tab around the slide and each object will be selected, announced, and the alt text (if present) will be read.
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This text box has alt text and it describes, in short, what the content is in the text box. |
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Section 5.7: Smart Art
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In order for Smart Art to be accessible, only two rules must be followed.
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An Alt Text has been included in the Word Document. The alt text explains exactly what is in the graph and describes the graph itself. |
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Section 5.8: Shapes
Shapes cannot be read by screen readers because it is considered to be floating content. Each screen reader treats shapes differently. NVDA announces the shape as “slash”, but does not read the alt text. JAWS announces the type of shape and the size, but does not read the alt text. VoiceOver automatically reads the alt text and announces that it is a shape, but not what shape. In short, there is no good way for shapes to be read yet. When creating shapes, follow these rules to make them more accessible.
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Rule 6: A user must be alerted to meaningful shapes in the document.
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Section 5.9: Using a Series of Shapes
A series of the same shapes or images should be grouped. They should also be given alternative text and a long description.
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