Jun 29, 2015 the web content accessibility guidelines wcag 2. Shows how wcag sufficient techniques and failures behave in commonly used screen readers. Providing the definition of a word or phrase used in an unusual or. This example is shown with microsoft word and adobe acrobat pro. Technologyspecific techniques do not replace the general techniques. She has collaborated with the official translation group of the wcag 2. Olga revilla is an interaction craftswoman focused on accessibility who thinks, designs, tests and audits interfaces. Moving, blinking, or scrolling can be used to draw attention to or highlight content as long as it lasts less than 3 seconds. These requirements must be met for all documents posted publicly to the internet including web pages, word, powerpoint, excel, and pdf documents.
One example of this is the creation of accessible pdf documents. Wcag stands for theweb content accessibility guidelines. Fortunately, the wai has included a very clear definition for web page. Web accessibility guidelines interactive accessibility. It is part of a series of documents published by the w3c web accessibility initiative wai to support wcag 2. In some cases, it may not be possible to create the links using the original authoring tool. They are intended to help authors create epub publications that conform to the requirements in epub. W3c created the web content accessibility guidelines wcag 2. Adac101adobe acrobat pro for desktop and mobile and ewaw101wcag 2. In a previous article, we discussed the web content accessibility guidelines wcag, how they came into being, and why its is the worlds most universally accepted set of web accessibility standards there are not one but now three versions of wcag. The w3c has released a document on pdf techniques for wcag 2. The 4 principles of the web content accessibility guidelines 2. It is developed by webaim, and is their interpretation of the wcag 2. Dpub specific wcag html techniques w3cdpubaccessibility.
Many countries and international organizations require compliance with wcag 2. Any changes marked are a draft and are not approved by the dpub accessibility task force and the wcag working group html and xhtml techniques. The simplest way to provide contextindependent link text that complies with the wcag 2. The checklist from section a forward is based on the wcag 2.
Make pdf files compliant with web content accessibility. It is worth noting that not all success criteria for wcag 2. This document outlines the requirements that the web content accessibility guidelines working group wcag wg has set for the development of web content accessibility guidelines wcag 2. Instead, it is expected that content authors will usually use how to meet wcag 2. Examples of these devices could be texttospeech for voice activation phones. This web page lists pdf techniques from techniques for wcag 2. Understanding the web content accessibility guidelines or equivalents are mandatory. Techniques for pdf authored over the past two years since the release of the last update to. Applying text alternatives to images with the alt entry in pdf documents. The first column of the table below links to the official wcag 2. As such, it can be confusing to determine which one your mainstream organisation should consider. How to meet the web content accessibility guidelines 2. The accessibility techniques described in this document are advisory in nature. Make pdf files compliant with web content accessibility guidelines 2.
Provide text alternatives for any nontext content so that. Techniques are informativethat means they are not required. Accessibility involves a wide range of disabilities, including visual, auditory, physical, speech, cognitive, language, learning, and neurological disabilities. Following these guidelines will make content more accessible to a. Pdf techniques for web content accessibility guidelines. This short tutorial clears up the confusion about accessibility standards and helps you select the correct standard for your website, word files, pdfs, and other digital content. Requirements for web content accessibility guidelines 2.
In a previous article, we discussed the web content accessibility guidelines wcag, how they came into being, and why its is the worlds most universally accepted set of web accessibility standards. In addition to section 508 requirements, hhs has policies, standards, and requirements for electronic documents that include but are not limited to the following. January 26, 2018 the web content accessibility guidelines wcag is a set of technical requirements to follow when you want to make sure a website or app can be used by the largest group of people, including those with disabilities. A customizable quick reference to read the wcag success criteria, and follow links from there to specific topics in understanding wcag 2. Techniques for pdf authored over the past two years since the release of the last update to the wcag techniques which included techniques for flash are now part of the larger collection of techniques. This book will help you learn how to meet the web content accessibility guidelines 2. The checklist below, a series of tables, is based on the content of the pdf. The w3c wcag guidelines were developed through an open process by the world wide web consortium w3c. There is a short understanding document for each guideline and success criterion in wcag 2. For these and other additional requirements, the w3cs technique documents both general and pdfspecific techniques provide guidance for authors interested in complying with wcag 2.
Pdf developers need this type of clarity on how to meet wcag 2. Providing short text alternative for nontext content that serves the same purpose and presents the same information as the nontext content. Pdf techniques for web content accessibility guidelines 1. The first page of using accessible pdf documents with adobe reader 7. This approach ensures that content authors are not told that they cannot do a particular thing, but instead offers means and suggestions for ensuring that whatever is created can be made accessible.
They are intended to help authors create epub publications that conform to the requirements in epub accessibility, but they are not all applicable in all situations and there may be other ways to meet the requirements of that specification. The wcag documents provide four basic principles, each with guidelines and sub guidelines. The section understanding accessibility support in understanding wcag 2. Authors may discover a new way to address a success criteria. In addition to section 508 requirements, hhs has policies, standards, and requirements for electronic documents that include.
You can think of techniques as proven examples of how specific guidelines and. The pdf techniques checkpoints that are covered under this wcag 2. Providing the definition of a word or phrase used in an unusual or restricted way. Any changes marked are a draft and are not approved by the dpub accessibility task force and the wcag working group pdf techniques. The wcag working group maintains an extensive list of web accessibility techniques and common failure cases for wcag 2. Pdf checkpoint 1 ensure that the text of the document is accessible ensure that the text of your document can be extracted reliably in logical reading order. Provide text alternatives for any nontext content so that it can be changed into other forms people need, such as large print, braille, speech, symbols or simpler language. Keep in mind that techniques are informative, not normative, which means that other techniques may be used, as long as the success criterion is met. This is a niceworking document thatprovides a list of. The web content accessibility guidelines wcag is an internationally recognised standard created by the world wide web consortium w3c. Learn more about sonja and the rest of our team who works daily to make the world a more readable place web content accessibility guidelines 2. The user can navigate to and from all navigable page elements using only a keyboard. This checklist contains webaims interpretation of wcag guidelines and success criteria and our own recommended techniques for satisfying those success criteria. Expected to work these tests show support when accessibility features are used correctly.
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