If your presentation will be viewed via projector, the contrast often needs to be more pronounced than on printed material. Make sure there is a high contrast between the background and the text.If your presentation will be viewed via projector, the type should be larger than on printed handouts 30-point type is recommended. Ensure that the type is large enough to read easily.Similarly, Apple’s Keynote presentation software is not recommended if you need to create an accessible presentation. For example, you cannot assign Alt Text to images or export the presentation as an accessible PDF file in the versions until and including 2008. Mac users should be aware that many versions of PowerPoint for Mac have serious accessibility limitations.
Screen enhancement software: This allows users to magnify the computer screen or change the contrast to make the content easier to see. Screen readers: These read aloud information on a computer screen, such as written text, or the description of an image provided through alternative text or Alt Text.
Some examples of assistive technology are: Some students use assistive technology to adapt information into a usable format for their learning needs. Additionally, it can be easily read by a screen reader, has effective alternative text (Alt Text), and contains captioning or transcripts for any embedded audio or video. An accessible PowerPoint presentation is one that can be followed and understood by any student.