Preview the document

The instructor feedback, in-browser, preview shows the content for PDFs, Word documents and PowerPoint documents.


The preview highlights where specific accessibility issues can be found in the document. Highlights show every occurrence of one issue type at a time. For example, if your images are missing alternative descriptions, the highlights show you every place this specific issue occurs. If your document also has poor text contrast, select that issue in the feedback panel to see the occurrences of that issue highlighted.

Highlights are provided for these issues:

  • Images without an appropriate alternative description
  • Text fragments with insufficient contrast
  • Tables without table headers

All other accessibility issues are not highlighted in the preview.

Missing text description

Text contrast

Scanned PDF

Preview tools

Use the tools above the preview to explore the issues in your document.

  • Move through the document preview page by page.
  • See how many times a specific issue appears in the document.
  • Jump between the issue highlights.
  • Hide or show the highlights.
  • Zoom the preview content in or out.
  • Download the original file.