Overcoming Accessibility Challenges for Section 508 Compliance

This is based on an article from the National Center on Disability and Access to Education, describing how properly structured / tagged PDF documents can be made accessible and in compliance with Section 508, and the disability types that can be aided by the process:


Accessibility challenge Disability type(s) Solution(s)
Only true headings and lists will convey semantic meaning to a screen reader user. Blind
  • Tag all headings so they are true headings (H1, H2, etc.
  • Tag all lists as ordered or unordered lists.
Images must include an alternative description (alt text) to be meaningful to a screen reader user. Blind
  • Add Alternate Text to each document.
  • Combine complex figures and provide Alternate Text.
Complex charts or tables may not contain proper headings, captions or summaries. Blind
  • Tag table rows (<TR>), table headers (<TH>), and table data cells (<TD>).
  • Set the scope of each table header cell (column or row)
Poor color contrast, especially in images and charts. Color blind, Low vision
  • Ensure sufficient color contrast in text, charts and images. One way to verify this is to print out the document on a black and white printer.
Documents with forms that can be filled in on the screen (checkboxes, text fields, etc.) may not be accessible to screen reader users and may not export correctly to other formats. Blind, all users
  • Make sure form elements have appropriate tags.
  • Verify that the form can be completed using common screen readers.
A page may be read out of order by a screen reader. That is, the reading order and the visual order may be different. Blind
  • Check and edit the reading order using Acrobat reading order tools
  • Verify reading order with screen reader
Scanned PDF files that are not converted to plain text will not be accessible to screen reader users. Blind
  • Convert a scanned PDF file into text using an Optical Character Recognition program.
A PDF reader program must be used to view PDF files. All users
  • The Adobe Reader can be downloaded free from the Adobe site.
  • There are a number of free reader programs that are available for several platforms. The accessibility features of these readers vary.
Embedded multimedia may be inaccessible, especially if it is not captioned. Deaf, Blind
  • Make sure embedded multimedia is captioned. This is possible in a PDF file.
  • If necessary, provide audio descriptions for the blind.
Scanned PDF files converted to real text can have numerous misspellings that may only be apparent to screen reader users. Blind
  • Use a spell check to make sure as many words are spelled correctly as possible.
Headers, footers, logos and other content that meant to be ignored may be read by a screen reader on every page. Blind
  • Convert extraneous information to an artifact
  • If appropriate, make the first instance of repetitive information visible and convert subsequent versions into artifacts.

FAQ: What is the price per page to remediate a document and make it compliant with Section 508?


Section 508 compliance
Every document is unique, and every client has different requirements, so there is no set cost per page to make a document compliant with Section 508 of the ADA. A 10 page document with numerous tables, charts and graphics may require more remediation than a 200 page mostly text document. Many of our clients have special compliance specifications– we are prepared to handle the most stringent requirements.
A typical job for a health insurance organization with 80-100 documents totaling 2000-3000 pages may be as low as $2 a page, depending on the state of the documents.  A typical single document remediation of 20 pages may cost between $2-20 per page.
We never quarrel with those who sell for less, as they know what their service is worth.  EDCS remediated documents are guaranteed accessible, not merely error-free according to an automatic check.
We will be glad to evaluate your documents, give you a report on their compliance needs and  a firm bid including turnaround time, please contact us for more information.

Tips for Document Creators: Alternate Text


Electronic Document Compliance Services


Using best practices for creating accessible documents makes Section 508 compliance much less costly. Adding alternative text for images is the imperative, and needs to be done correctly:
By following the basic principles outlined here, web developers can make their web content more accessible to individuals with disabilities.

  • Alternative text may be provided in the alt attribute or in the surrounding context of the image, but not both.
  • Every image must have an alt attribute.
  • Alternative text should:
    • presents the CONTENT and FUNCTION of the image.
    • be succinct.
  • Alternative text should not:
    • be redundant (be the same as adjacent or body text).
    • use the phrases “image of…” or “graphic of…”.
  • Appropriate alternative text depends heavily on the image’s context.
  • Alt text of a functional image (e.g., an image within a link) should describe the function as well as the content.
  • Decorative images still need an alt attribute, but it should be null (alt=”").
An indepth article on proper usage of the image alt tag can be found at the WebAim web site.

Find out more about Section 508 document compliance here: http://508compliantdocumentconversion.com

Accessible Documents Benefit All Users; Not Just for “Screen Readers”


It is a common myth that making your documents accessible and compliant with Section 508 is only for the benefit of users with disabilities. In fact, compliant documents benefit all users.  Consider these facts:
  • More and more content on websites comes in PDF form.
  • Structured, tagged PDFs are more accessible to search engines. Google, etc., is “blind”, in a sense; it sees an untagged document as a blank document. On the other hand, a tagged document is optimized for searching. This makes it easy for search engines and USERS to find content in your documents.
  • More and more users access content from tablets and mobile devices.
  • Structured, tagged PDFs are accessible on mobile devices using “page reflow”, available for mobile applications, so your content is readable on smart-phones, e-book readers, tablets, etc.,  virtually any Internet-connected reading device.

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