Bridging the gap: accessibility & PDF
Franck GROSS Business Developer Acrobat Solutions
1 2005 Adobe Systems Incorporated. All Rights Reserved. Agenda
Accessibility Drivers
Acrobat Accessibility Features
What Tags Do
Capturing paper
Forms
Authoring Tools
Techniques
Additional Resources
2 2005 Adobe Systems Incorporated. All Rights Reserved. Accessibility Drivers
Government Mandates Around the World
Section 508 - USA
Disability Discrimination Act of 1995 – United Kingdom
Common Look and Feel (CLF) and Web Content Accessibility Guidelines (WCAG) - Canada
Manufacturer/ Industry Standards
W3C Web Accessibility Initiative (WAI)
Assistive Technology Improvements – JAWS, Window Eyes, HAL, Zoomtext, Kurzweil etc.
Adobe PDF 1.4, Macromedia Flash, Microsoft MSAA
Stakeholder Advocacy
ACB, AFB, NFB, NCD, RNIB etc…
3 2005 Adobe Systems Incorporated. All Rights Reserved. United Kingdom: 1995 Disability Discrimination Act
The Disability Discrimination Act 1995 (DDA) makes it unlawful to discriminate against disabled people in the way in which you provide services Discrimination can take place in two ways by treating a disabled person less favourably by failing to make “reasonable adjustments” so that disabled people can make use of a service The 2001 Special Educational Needs and Disability Act (SENDA) amended the DDA to include education
4 2005 Adobe Systems Incorporated. All Rights Reserved. 1995 Disability Discrimination Act (cont.)
The Disability Rights Commission Code of Practice published February 2002 includes a definition of the term ‘service‘
http://www.drc-gb.org/uploaded_files/documents/2008_223_drc_cop_rights_of_Access.doc
A website that offers free information or a commercial product or service to the public is a ‘service’ as defined under the Act
e.g, an airline ticket booking service
Such websites must conform to web accessibility guidelines
e.g. W3C WCAG (World Wide Web Consortium’s Web Content Accessibility Guidelines)
This extends to content delivered by the website, including Flash, PDF, QuickTime etc.
In January 2006 the DRC and the BSI will publish ‘PAS 78: Guide to Good Practice in Commissioning Accessible Websites’
5 2005 Adobe Systems Incorporated. All Rights Reserved. Legal action
As yet no company or organisation has been sued in a UK court for having an inaccessible web site
In July 2003, RNIB pursued two such cases
In one case, county court proceedings were issued
Both cases were settled out of court “in the best interests of the blind and partially sighted people involved”
6 2005 Adobe Systems Incorporated. All Rights Reserved. European legislation
Accessibility of Public Web Sites – Access for People with Disabilities: Council Resolution 25 March 2002:
“Encourages Member States to implement specific and adequately- resourced measures to achieve the underlying objective of the eEurope 2002 Action Plan for accessibility of public web sites at all levels of government”
Applicable to central Government and local authorities
7 2005 Adobe Systems Incorporated. All Rights Reserved. What Does This Mean to Software Applications?
Providing applications software
… and delivering electronic content
… that can be used effectively by people with disabilities
Image © RNIB 2005
8 2005 Adobe Systems Incorporated. All Rights Reserved. Uses of Adobe PDF
Adobe PDF is a standard for final- form documents on the Web
Over 150 worldwide government agencies have adopted Adobe PDF
Including thousands of PDF forms
Adobe PDF is the de facto standard for electronic documents in the publishing industry
Over 1.25BN Adobe Readers distributed
2M downloads per week
20 languages
9 2005 Adobe Systems Incorporated. All Rights Reserved. The Accessible Electronic Document
Logo Title
Subtitle Column 1 Scanned image Table Data Column 2
Contains both content and structure
10 2005 Adobe Systems Incorporated. All Rights Reserved. The Accessible Electronic Document
Bookmarks with Hyperlinks
Contains navigational aids
11 2005 Adobe Systems Incorporated. All Rights Reserved. The Accessible Electronic Document
Scanned Text Computer Text
Contains real text, not just scanned text
12 2005 Adobe Systems Incorporated. All Rights Reserved. The Accessible Electronic Document
“Document language is English” “Image of surface preparation equipment”
Correctly defined reading order
Contains extra information for the blind or visually disabled
Correctly defined reading order of document text and tables
Alternate text descriptions for images
A defined document language and meaningful form field descriptions
13 2005 Adobe Systems Incorporated. All Rights Reserved. Acrobat Family and PDF
View and Print Accessible PDF documents and forms with the following Adobe products:
Adobe Reader® 7.0
Acrobat 7.0 Elements
Acrobat 7.0 Standard
Acrobat 7.0 Professional
14 2005 Adobe Systems Incorporated. All Rights Reserved. Adobe Reader 8.0: Built-In Accessibility
Accessible installer
Detection of assistive technology
Such as screen readers / screen magnifiers
Wizard to set accessibility options
Automatic generation of accessibility information
On-the-fly, when necessary
Accessible website with user information
http://access.adobe.com
15 2005 Adobe Systems Incorporated. All Rights Reserved. Adobe Reader 8.0: Built-In Accessibility
Alternate reading orders
Menu: Edit Æ Preferences Æ Reading
Read Aloud
Menu: View Æ Read Out Loud
Key: Control + Shift + V (Page)
Key: Control + Shift + B (Entire Doc.)
Auto-Scroll
Menu: View Æ Automatically Scroll
Key: Control + Shift + H
High contrast viewing
Menu: Edit Æ Preferences Æ Accessibility
Key: Control + K Image © RNIB 2005
16 2005 Adobe Systems Incorporated. All Rights Reserved. Acrobat 8.0 Standard: Accessibility Features
Acrobat 8.0 Standard enables the easy creation, exchange, review and approval of accessible PDFs
It includes all of the features available with Adobe Reader 8.0 plus:
Fast and easy tagging of existing PDF documents
Reduce tagged PDF file size for faster downloads
Add security while retaining accessibility
Add text to scanned pages
Export correctly-ordered text from PDF files to Word and XML
18 2005 Adobe Systems Incorporated. All Rights Reserved. Acrobat 8.0 Professional: Accessibility Features
Acrobat 8.0 Professional includes all the features available with Reader, and Acrobat 8.0 Standard
Includes expert tools to optimise accessibility for PDF documents
Review and modify the reflow/ reading order of objects on a page
Check and touch up documents for accessibility e.g. adding alternate text
Create accessible PDF forms
Using dedicated Adobe LiveCycle Designer (Windows only)
19 2005 Adobe Systems Incorporated. All Rights Reserved. PDF Accessibility: How it works
Franck Gross Accessiweb 2006 Cité des sciences et de l’industrie
20 2005 Adobe Systems Incorporated. All Rights Reserved. The Accessible PDF
“Document language is English” PDF maintains the visual integrity of a document
But the logical document structure may not follow the drawing order of page objects
A truly accessible PDF must unambiguously define document structure “Image of surface This is accomplished by preparation “tagging” page elements equipment” Purely visual elements must carry an alternate text description
Correctly defined reading order
21 2005 Adobe Systems Incorporated. All Rights Reserved. What
Enable document reflow (low vision, limited mobility)
Provide a “hook” on which to hang alternative text descriptions
Make it possible to modify reading order without changing the document’s appearance
Ensure the correct interpretation of tables and interactive features such as form fields, bookmarks, hypertext links, web URLs etc.
22 2005 Adobe Systems Incorporated. All Rights Reserved. How do I make a tagged PDF?
Scanned page? Form?
Apply OCR (Optical Character Existing forms can be tagged Recognition) Where no form fields exist, use Treat as legacy PDF form creation methods in Acrobat 7.0 Professional
Legacy PDF? Original document?
Add Tags Where possible, define document structure in authoring application Add alternate descriptions for graphics and images Otherwise, convert and treat as legacy PDF Check text Reading Order
23 2005 Adobe Systems Incorporated. All Rights Reserved. Scanned page: Document OCR
ASSIGNING IDENTIFICATION NUMBERS (IDs): Unique IDs are required for the following report elements: Stacks, Control Devices and Processes. For processes, that means a process ID number may be used only once on all General Process and Evaporative Process Forms.
Scanned text Computer text
Turns pictures of text to actual text
Necessary so that screen reader has something to read
24 2005 Adobe Systems Incorporated. All Rights Reserved. Scanned page: Document OCR in Acrobat
Built in OCR (Optical Character Recognition)
Acrobat menu: Document> Recognize text using OCR
25 2005 Adobe Systems Incorporated. All Rights Reserved. Forms in PDF
Create new PDF forms:
Forms tool in Acrobat 8.0 Professional
Adobe LiveCycle Designer (available in Acrobat 8.0 Professional, Windows only)
Legacy PDF forms can be made accessible
Adobe PDF Forms Access 1.0
26 2005 Adobe Systems Incorporated. All Rights Reserved. Legacy PDFs: Step 1 – Check accessibility
Advanced Æ Accessibilty Æ Quick Check (Shift-Ctrl-6)
Works in Adobe Reader as well as Acrobat
Result shows document is not structured
27 2005 Adobe Systems Incorporated. All Rights Reserved. Legacy PDFs: Step 2 – Add Tags
Advanced Æ Accessibility Æ Add Tags to Document
Results report contains hints and tips on further steps needed
28 2005 Adobe Systems Incorporated. All Rights Reserved. Legacy PDFs: Step 3 – Visually check reading order
Advanced Æ Accessibility Æ TouchUp Reading Order (or TouchUp toolbar)
Text read order can be changed using the Order panel
29 2005 Adobe Systems Incorporated. All Rights Reserved. Legacy PDFs: Step 4 – Add alternate text descriptions
Use the TouchUp Object tool to add alternate text descriptions to images and graphics Screen Reader reads out the description when it encounters the picture
30 2005 Adobe Systems Incorporated. All Rights Reserved. Original electronic documents
The best source for creating accessible PDFs
Document structure can often be preserved, avoiding the need for tagging in Acrobat
MS Office documents can be converted using PDF Maker add-in
PDF Maker generates accessibility information in the PDF
Adobe InDesign CS2
Author graphically rich layouts, turn them into tagged PDF or accessible HTML
Adobe FrameMaker 7.0
Author long, structured documents, turn them into tagged PDF or accessible HTML
Adobe PageMaker 7.0
Author business publications, turn them into tagged PDF, HTML
31 2005 Adobe Systems Incorporated. All Rights Reserved. Original documents: Microsoft Office
With Acrobat’s PDF Maker for Microsoft Office
Microsoft Word, Excel, PowerPoint
Microsoft Visio, Project
32 2005 Adobe Systems Incorporated. All Rights Reserved. Original documents: Ensuring correct structure in Word
The better the source document structure, the better the PDF
In Word, use styles consistently to ensure headings, bullets etc. are identified correctly
Styles can also generate bookmarks (navigation controls) automatically when using PDF Maker
33 2005 Adobe Systems Incorporated. All Rights Reserved. Original documents: Adding alt text in Word
You can also add alternative text to images and graphics in Word itself, and will be carried over to the PDF:
1. Right-click the photo of the earth to open the shortcut menu.
2. On the shortcut menu, click format picture.
3. In the format picture dialog box, click the web tab.
4. In the alternative text box, type photo of the earth as seen from
space. Then click OK.
34 2005 Adobe Systems Incorporated. All Rights Reserved. Original documents: Adding structure in InDesign
Structure panel in InDesign allows XML tagging of all page elements
Text
Figures
Tables
Publish from and to XML
Map styles to XML tags and vice versa
Create accessible PDF
Complete with alt text, table structures etc.
35 2005 Adobe Systems Incorporated. All Rights Reserved. More Adobe tools that produce accessible PDFs
Adobe GoLive CS2
Author HTML and manage Web sites, use SSB Technology to check for accessibility
Adobe Acrobat Capture 3.0
Turn high volumes of scanned pages into tagged PDF
Adobe Acrobat Capture 3.0 Agent Pack with PDF Forms Access
Use the Tag Adobe PDF Agent to automatically tag volumes of legacy PDF files
37 2005 Adobe Systems Incorporated. All Rights Reserved. PDF Security and Accessibility
Document security can defeat PDF accessibility by preventing a screen reader having access to the text
Avoid this situation by allowing Content Extraction for Accessibility when defining document security
This permits “trusted” screen readers to access the content for accessibility purposes only
38 2005 Adobe Systems Incorporated. All Rights Reserved. For More Assistance…
http://access.adobe.com (note: no www)
Franck GROSS Business Developper Acrobat +33 1 56 54 99 09 [email protected]
PDF Zone – www.pdfzone.com
Planet PDF – www.planetpdf.com
41 2005 Adobe Systems Incorporated. All Rights Reserved. 42 2005 Adobe Systems Incorporated. All Rights Reserved.