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Using CommonLook PDF Validator to Test Documents

The Acrobat Check does not test against WCAG 2.0. The PAC-3 checker says it tests against PDF/UA. However, both checkers fall short in testing things like color use, contrast, accurate alternative text on images and links, the proper use of headings and reading order, plus the accuracy of tooltips. PDF Validator is the solution that beats them both.
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The National Federation of the Blind Cracks Down on Accessibility Overlay Tools

We would all like to find a quick fix for many things in life. Regarding digital accessibility for your website or mobile app, finding a “quick fix” may seem easy, but the correct fix is required to provide equitable access…
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Google is Releasing a Powerful Accessibility Feature for All Chrome Users

Two years ago, Google reached out to CommonLook because of our expertise in PDF accessibility. At the time, we recognized the potential impact on PDF accessibility due to the massive number of Chrome users around the world. Monir ElRayes, President…
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Accessibility Overlay Tools May Seem Like A “Quick Fix” For Your Problem – but read further…

What Is An Overlay Tool? Accessibility overlays, toolbars, and plugins are third-party widgets that attempt to automatically improve the accessibility of websites they are added to. They may provide additional functionality such as text resizing, element highlighting, and color scheme…