Monday, January 1, 2024

Summary

Most document and web editors let you add text descriptions (“ALT text”) of images in your documents. Make sure your ALT text adequately conveys the content and purpose of any images you include in your documents.

Tips for providing good ALT text

  • For simple images, keep the description concise: not more than 140 characters
  • For images that require longer descriptions (e.g., charts or graphs), provide ALT text and a link to a detailed description
  • For images of text (e.g., logos, wordmarks), use the image text as the ALT text
  • Avoid using terms like “Picture of…” or “Image of…”; assistive technologies will provide that information to the end user
  • Be sure to provide ALT text with images that are used as buttons or links
  • Decorative images, spacer images, images combined with text links, and images described by adjacent text may not need ALT text