FYI: all CUNY computers have Adobe Acrobat Pro DC installed.
Sometimes it is not easy to tell what images the automated system is asking about so it may be best to hit the “Save & Close” button here and check/fix image alt-text issues from the “Accessibility Report” where it is easier to see the images since they are highlighted. (See section III)
Here is a video walking you through the steps to run Adobe Acrobat Pro's "Accessibility Checker" on your PDF.
Here is a video walking you through checking your PDF's reading order using Adobe Acrobat Pro's "Accessibility Checker".
Unless otherwise noted, these accessibility guides were created by Accessibility Librarian Amy Wolfe for CUNY and are licensed under a Creative Commons Attribution-Non Commercial-ShareAlike 4.0 International License. If you re-use, remix or link to this guide, it would be appreciated if you could notify the creator Accessibility Librarian Amy Wolfe.