Grackle Docs automatically checks your Google Doc against accessibility standards and can create PDF/UA onto your Google Drive.
One Click Accessibility for Google Docs
How to use:
Open any Google Docs and select "Grackle Docs" from the add-on menu.
Grackle Docs will automatically check your documents and suggest any corrections.
Grackle Docs extends the accessibility of Google Docs by automatically checking all aspects of your document and advising you how to make things better. Once you are satisfied that your document is truly accessible, Grackle Docs gives you the ability to create tagged PDF output so that you can send your documents on to others.
RELEASE THE GRACKLE!