The information on this page will be updated as new guidelines & best practices are established
PDFs are the preferred format for all digital documents distributed online. The easiest way to create compliant PDFs is to export directly from Microsoft Word. Visit the Testing PDF Documents for Accessibility page for more information on scanning PDF documents.
Microsoft Word Documents
The accessibility of your final PDF heavily depends on the source Word document. Use proper heading styles, alt text for images, and clear table structures in Word before exporting to PDF.
Use Headings Properly
Using Microsoft Word's built-in heading tool is essential for creating well-structured and accessible documents. Headings (Heading 1, Heading 2, Heading 3, etc.) not only visually organize your content but also provide crucial structural information for assistive technologies like screen readers. Properly formatted headings allow users to navigate documents easily, understand the hierarchy of information, and quickly find specific sections. Using Word's built-in heading styles ensures consistent formatting and creates a logical document outline, which is vital for accessibility and overall document usability.
Changing the size, color, or boldness of plain text does not create a heading. You can, however, change the size, color, and boldness of the different headings if the default options do not work with your document. Headings should cascade upward
Headings can be found in the Styles pane under the Home tab in Microsoft Word.
Alt text for all photos & graphics
Adding alternative text ("alt text") to images in Microsoft Word is crucial for making your documents accessible to people with visual impairments who use screen readers. Alt text provides a textual description of an image, allowing screen readers to convey the image's content and context to the user. Here's a guide on how to add alt text in Word:
This is the most direct and reliable method, especially in newer versions of Word.
- Select the image
Click on the image you want to add alt text to. - Open the "Picture" or "Format Picture" tab (depending on your version)
- Click the "Alt Text" button
- Add your description
Make sure your description is a concise and descriptive explanation of the image
Writing Effective Alt Text
- Be concise
Keep your descriptions brief and to the point. Aim for under 125 characters if possible. - Be descriptive
Provide enough detail so that the user understands the image's content and purpose. - Provide context
Consider the surrounding text and how the image relates to it. - Avoid redundancy
Don't repeat information that is already in the surrounding text. - Don't start with "Image of..." or "Picture of..."
Screen readers already announce that it's an image. - For decorative images
If an image is purely decorative and doesn't convey any meaningful information, you can either leave the alt text blank (in newer versions of Word) or use two quotation marks with no space between them ("") in older versions. This tells screen readers to ignore the image. - For complex images (charts, graphs, etc.)
If an image contains complex information, provide a brief summary in the alt text and consider including a more detailed description in the surrounding text or in a caption.
Example:
Instead of:
Photo of a student
Use:
Undergraduate students studying in the Student Center
- Select the image
Export Documents as PDFs
Exporting Word, Excel, and Powerpoint documents as PDFs is generally straightforward across different operating systems. This is the most reliable method to create accessible PDFs as it preserves document structure and metadata.
Generally all documents can be exported as PDFs, but it may not be appropriate for all documents. Excel files, for example, may be too large to export meaningfully into a PDF while retaining readability for users. In that case, it is perfectly reasonable to keep the document in the Excel format, assuming it complies with ADA regulations and guidelines.