History

A: The first PDF specification was introduced in 1993. PDF's roots go back much earlier, though, to the invention of Postscript.

Scott Robert Ladd (scott.ladd@maximal.com) [A74]

A: Here is some information from the preface of Adobe's Pdf Specification.

http://partners.adobe.com/asn/developer/acrosdk/docs/PDFRef.pdf

Hope this helps.

"THE ORIGINS OF THE Portable Document Format and the Adobe Acrobat product family date to early 1990. At that time, the PostScript page description language was rapidly becoming the worldwide standard for the production of the printed page. PDF builds on the PostScript page description language by layering a document structure and interactive navigation features on PostScript's underlying imaging model, providing a convenient, efficient mechanism enabling documents to be reliably viewed and printed anywhere. The PDF specification was first published at the same time the first Acrobat products were introduced in 1993. Since then, updated versions of the specification have been and continue to be available from Adobe via the World Wide Web. This book is the first version of the specification that is completely self-contained, including the precise documentation of the underlying imaging model from PostScript along with the PDF-specific features that are combined in version 1.3 of the PDF standard."

DesQuite (desquite@hotmail.com) [A75]