When a graph or chart is used in a Word document or a .pdf, it is interpreted by a
screen reader as an image. So, if use a graph/chart to display content in your
document, be sure to present all of the information you would like a user to learn from it,
in an alternative method. For example, if a chart shows that 60% of men surveyed like
apples and 40% like oranges, you should either describe that concept in a paragraph
leading up to the graph/chart or put that information in the alternative description text.
To assure that your document is not tampered with after you have made it accessible;
you should restrict the editing of your document. This also makes it easier for someone
using a screen reader to navigate your document.
1) Click the Review Tab.
2) Click Restrict Editing on the far right side of the ribbon.
3) Restrict Editing pane is on the right side of the ribbon of the Protect dialog
4) Number 2. Editing restrictions, check the Allow only this type of editing
in the document, and make sure the drop down box is set to No changes
5) Under 3. Start enforcement.
6) Click Yes, Start Enforcing Protection.