PDF/UA
The PDF/UA (PDF/Universal Accessibility) format is a subset of PDF designed to store any electronic documents in order that they be accessible to people utilizing assistive technologies. The PDF/UA specifications primarily target people with disabilities, such as the blind using text-to-speech screen readers. The PDF/UA format is developed, supported, and standardized by AIIM (Association for Information and Image Management). In 2007 the International Organization for Standardization commenced PDF/UA review as an ISO standard.
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Alan Schoen
USA
«Universal Document Converter is so user-friendly that one doesn't have to remember anything in particular about how to use it. It's structured in such a common-sense way that it just automatically explains itself to the user.»