You can also access these resources online:
- The PDF Reference, ISO 32000-1:2008, Document Management-Portable Document Format-Part 1: PDF 1.7, a comprehensive guide for developers to work with the PDF format. This document, published in 2008, is over 750 pages long and will likely answer any questions you have about creating software to work with PDF files.
- Adobe Systems PDFL SDK 15 HTML Help, Adobe Systems’ online help tool for Adobe PDF Library version 15.
- Adobe Systems ReadMe document for APDFL 15, Readme_for_PDFL_SDK_XV_15.0.4.