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PDF - Wikipedia
PDF UA, the International Standard for accessible PDF based on ISO 32000-1 was first published as ISO 14289–1 in 2012 and establishes normative language for accessible PDF technology
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PDF Association – PDF’s technical community
How do you find the right PDF technology vendor? Use the Solution Agent to ask the entire PDF communuity! The PDF Association celebrates its members’ public statements of support for ISO-standardized PDF technology