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It’s a question that vexes vendors of web-based solutions everywhere: why do people still insist on PDF files? And why does PDF’s mindshare keep going up? “PDF is such antediluvian technology!” they say. “It’s pre-web, are you kidding me? It’s so old-f …

PDF is PDF because files produced with one vendor’s software can be read using a different vendor’s software with no loss of fidelity. Interoperability is key to our industry. The PDF Association is a international membership organization dedicated to …

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NARA (The National Archives and Records Administration) is the final depository for the long-term records generated by all other agencies of the U.S. Federal Government. The agency has a key role in preserving the cultural history of the republic as we …

Additional Accessibility Declarations (AADs)

Specification IRI
WCAG 2.0 Level A  https://www.pdfa.org/accessibility-declarations/20170224/wcag-a
 WCAG 2.0 Level AA  https://www.pdfa.org/accessibility-declarations/20170224/wcag-aa
 WCAG 2.0 Level AAA https://www.pdfa.org/accessibility-declarations/20170224/wcag-aaa
 Section 508 (2017) https://www.pdfa.org/accessibility-declarations/20170224/section508-2017-01
Section 508 (2001) https://www.pdfa.org/accessibility-declarations/20170224/section508-2001-07