Matterhorn Protocol

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How to Fail PDF/UA

January 14, 2014 15

I’ve just completed a new article for the PDF Association introducing the Matterhorn Protocol. It’s intended for software development professionals thinking about accessibility in PDF. The article describes the purpose and function of the Matterhorn Protocol, and explains how developers may use this document to address PDF/UA conformance in a systematic and reliable manner. While… Read more

Warning! Human Judgment Required for PDF/UA Conformance

February 14, 2013 12

This article is intended to highlight how PDF/UA differs from previous PDF standards from an implementation (ie, software development) standpoint. The distinction is of serious interest to developers, as end-user expectations of files claiming PDF/UA conformance are based on criteria that may be costly to fulfill. Files claiming PDF/UA conformance may be subject to intensive… Read more