Recently I embarked in project, making 900+ PDF's accessible and as I started working on this I ran into issues. One of complex issue is where Acrobat PDF reader (Read out loud) doesn't read text has special characters. Since we have source InDesign file of PDF I tried to provide alt text using InDesign 'Object Export Options' but that didn't help me.
Does Acrobat provide any workaround to provide alt text to that kind of story so that I could put there alternate text (without any special characters)?
Other issue is where I've chunk of text as image and for the same I'm providing alt text using InDesign 'Object Export Options' but again it is not being read in Acrobat.
I'm new to accessibility and I learned making accessible PDF using link http://www.nwcg.gov/accessibility/creating-accessible-pdf-documents-with-adobe-indesign-cs 6-v3.pdf
Can someone out there help me on this?
You can apply at text within Acrobat Pro. In the Tags pane, right click the applicable tag and select Properties. You will see the Alternate Text field on the Tag tab of the Object Properties. There may be other, possibly better solutions such as marking the special characters as artifacts, and applying OCR to the text-as-image - hard to say without seeing a sample document.
Read Out Loud is not the best tool for checking accessibility, by the way. With 900+ documents to deal with, you might want to try using a screen-reader-emulator such as the one built into the free PDF Accessibility Checker (PAC) 1.3 (http://www.access-for-all.ch/en/pdf-lab/pdf-accessibility-checker-pac/dl132.html)
Hope this helps.
a 'C' student