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Accessibility issues: Images and the use of ALT Text Screen reader users, such as the visually impaired, rely upon ALT text for a textual representation.

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Presentation on theme: "Accessibility issues: Images and the use of ALT Text Screen reader users, such as the visually impaired, rely upon ALT text for a textual representation."— Presentation transcript:

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2 Accessibility issues: Images and the use of ALT Text Screen reader users, such as the visually impaired, rely upon ALT text for a textual representation of an image that they may not be able to see. If the image adds value or meaning to the resource adding ALT text enables a screen reader user to interact with the resource in the same way as everyone else An image without ALT text (Screen reader may announce picture or ignore image without ALT text) Image with ALT text (Screen reader reads ALT text) Click for slide read by screen reader JAWS Note: The eLearning Team banner is an image with ALT text. This gets read out by JAWS. The footer image does not have ALT text associated with it.

3 Accessibility issues – How to add ALT text In MS Word and PowerPoint (2010) Right click on image (it may require 2 right clicks) Select: Format Picture Select: Alt text Type alternative text into the ‘Description’ box For detailed instructions for all versions of MS Word see:

4 Accessibility issues – How to add ALT text in MyAberdeen In MyAberdeen, using the content editor: Add Alt Text to the Image Description box that appears when adding an image Leave the Title box empty For further advice contact

5 Accessibility issues – Appropriate ALT Text In cases where an image adds no value to a learning resource, and is included merely for visual effect, good etiquette requires an author to insert “” (double parenthesis) in the Alt text field (apart from in PowerPoint where doing this is counterproductive and the ALT text field should be left blank). If the ALT text field is left blank most screen readers will announce “picture” and the user will be left wondering whether or not the image was important. On detecting “” most screen readers will skip past the item (apart from in PowerPoint where the screen reader would read double parenthesis...) Advice on the appropriate use of ALT text can be found at

6 Accessibility issues – ALT text and Images Links : University of Aberdeen’s eLearning Team accessibility guide: Alternative Text in context: WebAim’s Microsft Word Accessibility article (including the use of ALT text): Creating accessible PowerPoint files: Add alternative text to a shape, picture, chart, table etc in MS Office: picture-chart-table-smartart-graphic-or-other-object-HA aspx?CTT=1 picture-chart-table-smartart-graphic-or-other-object-HA aspx?CTT=1


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