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NEIL KING  NATIONAL MANAGER ACCESSIBILITY CONSULTING VISION AUSTRALIA Web Content Managers’ Forum PDF and Accessibility
Source:  http://www.flickr.com/photos/sunraven0/5451897212/sizes/l/in/photostream/
Agenda <ul><li>What is accessibility </li></ul><ul><li>PDF accessibility in Australia </li></ul><ul><li>How and why we cam...
What is Accessibility <ul><li>Enabling everyone to interact with information on the web (including PDF’s) regardless of th...
 
Accessibility Approach <ul><li>Technical standards: </li></ul><ul><ul><li>W3C Web Content Accessibility Guidelines 2 (WCAG...
Australian Human Rights Commission <ul><li>Australian Human Rights Commission (AHRC) position as of October 2010: </li></u...
Australian Government <ul><li>Australian Government position as of December 2010: </li></ul><ul><li>“ Until further data i...
National Transition Strategy <ul><li>What is accessibility </li></ul>
How We Arrived Here <ul><li>Many technologies present accessibility issues </li></ul><ul><li>PDF is the most common cause ...
Government Study <ul><li>The Australian Government’s study into the Accessibility of the Portable Document Format for peop...
User Consultations <ul><li>To establish the user perspective when interacting with PDF files </li></ul><ul><ul><li>AGIMO p...
Workaround Process
Remove Workarounds <ul><li>Scan the document using as high a resolution as possible to improve the OCR results. performanc...
Technical Evaluations <ul><li>To identify the technical perspective in relation to assistive technologies and PDF  </li></...
Technical Issues
User Evaluations <ul><li>Objective to identify the lived experience for people with a disability using a PDF file </li></u...
Analysis of problems <ul><li>Not PDF format that was the issue, but three other factors:  </li></ul><ul><ul><li>The way th...
Outcomes of Study <ul><li>AHRC and Australian Government do not consider PDF at present to be an accessibility supported t...
The Way Forward <ul><li>Draft ISO accessible PDF (PDF/UA) standard is out for comment till end of April </li></ul><ul><li>...
ISO 14289 - PDF/UA <ul><li>Draft ISO accessible PDF (PDF/UA) standard is out for comment till end of April </li></ul><ul><...
PDF Techniques for WCAG 2.0 <ul><li>Adobe submitted 21 DRAFT Sufficient Techniques for PDF to W3C </li></ul><ul><li>Majori...
What Next <ul><li>W3C have to review and approve techniques </li></ul><ul><li>Australian Government will assess the techni...
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PDF Accessibility

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Neil King from Vision Australia presented on PDF accessibility at the Web Content Managers Forum in Melbourne - April 14, 2011

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PDF Accessibility

  1. 1. NEIL KING NATIONAL MANAGER ACCESSIBILITY CONSULTING VISION AUSTRALIA Web Content Managers’ Forum PDF and Accessibility
  2. 2. Source: http://www.flickr.com/photos/sunraven0/5451897212/sizes/l/in/photostream/
  3. 3. Agenda <ul><li>What is accessibility </li></ul><ul><li>PDF accessibility in Australia </li></ul><ul><li>How and why we came to this position </li></ul><ul><li>The way forward </li></ul><ul><li>Tips on creating accessible PDF files </li></ul>
  4. 4. What is Accessibility <ul><li>Enabling everyone to interact with information on the web (including PDF’s) regardless of their disability or specific access requirements </li></ul><ul><li>4 million people have a disability </li></ul><ul><li>Ageing population and workforce </li></ul>
  5. 6. Accessibility Approach <ul><li>Technical standards: </li></ul><ul><ul><li>W3C Web Content Accessibility Guidelines 2 (WCAG 2.0) </li></ul></ul><ul><ul><li>Adobe’s published characteristics of an accessible PDF document </li></ul></ul><ul><li>User Experience </li></ul><ul><ul><li>User-based evaluations </li></ul></ul>
  6. 7. Australian Human Rights Commission <ul><li>Australian Human Rights Commission (AHRC) position as of October 2010: </li></ul><ul><li>“ PDF cannot be regarded as a sufficiently accessible format to provide a user experience for a person with a disability that is equivalent to that available to a person without a disability… organisations that publish documents only in PDF risk complaint under the DDA unless they make the content available in at least one additional format and in a manner that incorporates principles of accessible document design”. </li></ul><ul><li>Source: www.humanrights.gov.au/disability_rights/standards/WWW_3/www_3.html#pdf </li></ul>
  7. 8. Australian Government <ul><li>Australian Government position as of December 2010: </li></ul><ul><li>“ Until further data is available on the characteristics of an accessible PDF file and there are Sufficient Techniques available to support the conformance of the PDF technology to WCAG 2.0, the Australian Government position recommending that alternative file formats be provided whenever PDF files are used should remain unchanged”. </li></ul><ul><li>Source: http://www.finance.gov.au/publications/pdf-accessibility-study/1-exec_summary.html </li></ul>
  8. 9. National Transition Strategy <ul><li>What is accessibility </li></ul>
  9. 10. How We Arrived Here <ul><li>Many technologies present accessibility issues </li></ul><ul><li>PDF is the most common cause of accessibility complaints received by AHRC </li></ul><ul><li>Significant advances in accessibility support for PDF </li></ul>
  10. 11. Government Study <ul><li>The Australian Government’s study into the Accessibility of the Portable Document Format for people with a disability </li></ul><ul><ul><li>How PDF files are used by people with a disability </li></ul></ul><ul><ul><li>Implications of using PDF files </li></ul></ul><ul><ul><li>Inform the policy position of Government and AHRC </li></ul></ul>
  11. 12. User Consultations <ul><li>To establish the user perspective when interacting with PDF files </li></ul><ul><ul><li>AGIMO public online accessibility consultation </li></ul></ul><ul><ul><li>3 focus groups with people who are blind or have low vision </li></ul></ul>
  12. 13. Workaround Process
  13. 14. Remove Workarounds <ul><li>Scan the document using as high a resolution as possible to improve the OCR results. performance. </li></ul><ul><li>Load the scanned document in Acrobat Acrobat Pro. Select Document > OCR Text Recognition > Recognize Text Using OCR... </li></ul><ul><li>In the next dialog, select the All Pages radio button under Pages (or Current Page if you are converting only one page), and then select OK. </li></ul><ul><li>Under the Settings list, select Edit. In the next dialog, select Formatted Text and Graphics in the PDF Output Style drop-down list. This is important for ensuring accessibility. </li></ul><ul><li>Depending on the resolution and how clear the text was, OCR converts images of words and characters to actual text. Text that Acrobat Pro does not recognize is listed as an &quot;OCR suspect,&quot; or text element that Acrobat suspects was not recognized correctly. </li></ul><ul><li>To fix the suspects, choose Document > OCR Text Recognition > Find First OCR Suspect. Acrobat Pro presents each suspect one at a time, which can be corrected using Acrobat Pro touchup tools. </li></ul><ul><li>Run Advanced > Accessibility > Add Tags to Document </li></ul><ul><li>Test for accessibility: Advanced > Accessibility > Full Check... </li></ul><ul><li>Source: www.w3.org/WAI/GL/WCAG20-TECHS/pdf.html#PDF1 </li></ul>
  14. 15. Technical Evaluations <ul><li>To identify the technical perspective in relation to assistive technologies and PDF </li></ul><ul><ul><li>Established most common assistive technologies (AT’s) used in Australia by people who are blind or have low vision </li></ul></ul><ul><ul><li>Vendor support for AT’s and PDF </li></ul></ul><ul><ul><li>WCAG 2.0 technical testing </li></ul></ul>
  15. 16. Technical Issues
  16. 17. User Evaluations <ul><li>Objective to identify the lived experience for people with a disability using a PDF file </li></ul><ul><ul><li>23 Participants </li></ul></ul><ul><ul><li>8 PDF test documents (4 optimised) </li></ul></ul><ul><ul><li>Measure of effectiveness, efficiency and satisfaction </li></ul></ul><ul><ul><li>Problems experienced by users </li></ul></ul>
  17. 18. Analysis of problems <ul><li>Not PDF format that was the issue, but three other factors: </li></ul><ul><ul><li>The way the document had been designed </li></ul></ul><ul><ul><li>Lack of support of PDF by AT’s </li></ul></ul><ul><ul><li>User skill or experience using PDF and their AT’s </li></ul></ul>
  18. 19. Outcomes of Study <ul><li>AHRC and Australian Government do not consider PDF at present to be an accessibility supported technology </li></ul><ul><li>Findings from the study were positive </li></ul><ul><ul><li>Assistive technologies addressing issues </li></ul></ul><ul><ul><li>Adobe working to improve accessibility </li></ul></ul>
  19. 20. The Way Forward <ul><li>Draft ISO accessible PDF (PDF/UA) standard is out for comment till end of April </li></ul><ul><li>Adobe submitted 21 DRAFT Sufficient Techniques for PDF to W3C WCAG 2.0 </li></ul><ul><li>Source: http://drafts.bsigroup.com/ </li></ul><ul><li>Source: www.w3.org/WAI/GL/WCAG20-TECHS/pdf.html#PDF1 </li></ul>
  20. 21. ISO 14289 - PDF/UA <ul><li>Draft ISO accessible PDF (PDF/UA) standard is out for comment till end of April </li></ul><ul><ul><li>Not a techniques (how to) specification </li></ul></ul><ul><ul><li>Set of guidelines for creating specific accessible components (graphics, text, multimedia, form fields) in PDF </li></ul></ul><ul><li>Source: http://drafts.bsigroup.com/ </li></ul>
  21. 22. PDF Techniques for WCAG 2.0 <ul><li>Adobe submitted 21 DRAFT Sufficient Techniques for PDF to W3C </li></ul><ul><li>Majority of the techniques relate for Adobe Acrobat Pro </li></ul><ul><ul><li>Good tips for Word and OpenOffice accessibility </li></ul></ul><ul><li>Source: www.w3.org/WAI/GL/WCAG20-TECHS/pdf.html#PDF1 </li></ul>
  22. 23. What Next <ul><li>W3C have to review and approve techniques </li></ul><ul><li>Australian Government will assess the techniques once they have been formally accepted by the W3C against other issues uncovered in the PDF study – review position </li></ul>
  23. 24. Microsoft Word Techniques <ul><li>Always start with an accessible source document </li></ul><ul><ul><li>Use true heading styles rather than formatting effects </li></ul></ul><ul><ul><li>Provide alternative text for images </li></ul></ul><ul><ul><li>Use sufficient colour contrast between background and text </li></ul></ul><ul><ul><li>Identify the header row of tables </li></ul></ul><ul><ul><li>Avoid text boxes </li></ul></ul>
  24. 25. PDF Techniques <ul><li>PDF files should be made as accessible as possible (AHRC recommendations) </li></ul><ul><ul><li>Do not scan and save as PDF </li></ul></ul><ul><ul><li>The explicit specification of logical reading order </li></ul></ul><ul><ul><li>Provision of text descriptions for all meaningful images (Alt-text) </li></ul></ul><ul><ul><li>Proper construction of tables using the appropriate markup tags </li></ul></ul><ul><ul><li>The use of paragraph, heading, and list tags </li></ul></ul>© Vision Australia 2011 © Vision Australia 2011
  25. 26. Web Accessibility Team <ul><li>P: 1300 367 055 </li></ul><ul><li>E: [email_address] </li></ul><ul><li>W: www.visionaustralia.org.au/webaccess </li></ul><ul><li>Main Offices: </li></ul><ul><ul><li>346 Macaulay Road, Kensington Vic 3031 </li></ul></ul><ul><ul><li>4 Mitchell Street, Enfield NSW 2136 </li></ul></ul><ul><ul><li>Kent Street, Woolloongabba Qld 4102 </li></ul></ul>

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