What is Adobe Document Cloud? The PDF Reference was first published when Adobe Acrobat was introduced in 1993. Since then, updated versions of the PDF Reference pdf player’s handbook 5e been made available from Adobe via the Web, and from time to time, in traditional paper documents made available from book publishers.
During 2007 and into early 2008 that intent was turned into a reality. ISO published the approved ISO 32000-1 standard based upon PDF 1. ISO will also produce future versions of the PDF Specification.
Since ISO 32000 is equivalent to Adobe’s PDF 1. 7, Adobe is not producing a PDF 1.