PDFs are one of the biggest issues for website accessibility. In fact, research from WebAim showed that 75.1% of respondents indicated that PDF documents are very or somewhat likely to pose significant accessibility issues. That's because making PDFs accessible takes work, training, and includes a software purchase.
Common PDF Accessibility Errors
To make PDFs accessible you should have a paid for version of Adobe Acrobat. These are the most common accessibility errors to check for:
- Missing document title
- Missing or illogical reading order
- Images missing ALT text
- Wrong/confusing heading semantics
- Language settings
- Tables with no defined header
What Does it Look Like to Check PDFs for Accessibility
You can visit see how one goes about checking and remediating a PDF with the Adobe Acrobat software in this video from campus suite.
The question to ask, is do you really need a PDF on your website? Sometimes people want a PDF because of Often people have false views on why PDFs are needed such as:
- Myth: The content is secure.
- Reality: All digital content can be manipulated.
- Myth: It can be read more easily across platforms.
- Reality: Content placed directly on your site following WCAG guidelines can be read more easily across platforms.
- Myth: People will want to print my content from my website.
- Reality: Today most people prefer to read via mobile.
- Myth: PDFs should be used for forms.
- Reality: Rather than having visitors print forms out, you can provide them with an accessible digital form they can submit.
The best way to ensure your website is accessible is to place content directly into your website following web content accessibility guidelines (WCAG). If, for some reason, a document absolutely must be provided via PDF, provide the same information on your website in HTML as well.
cross posted at The Innovative Educator
Lisa Nielsen (@InnovativeEdu) has worked as a public-school educator and administrator since 1997. She is a prolific writer best known for her award-winning blog, The Innovative Educator. Nielsen is the author of several booksand her writing has been featured in media outlets such as The New York Times,The Wall Street Journal, Tech&Learning, and T.H.E. Journal.