In a significant development for the PDF community, the PDF Association is proud to announce the release of a new technical specification extending the rules outlined in ISO 32000-2. Titled "ISO/TS 32005 Document management - Portable Document Format - PDF 1.7 and 2.0 structure namespace inclusion in ISO 32000-2", this publication aims to address and clarify the rules governing PDF structure namespaces for both PDF 1.7 and PDF 2.0.
The advent of ISO 32000-2 marked a pivotal moment in the evolution of PDF documents, introducing mechanisms for defining namespaces within logically structured PDF files. Additionally, two recognized namespaces were identified for tagged PDF documents, significantly improving options for document accessibility and richer semantic structures. However, ISO 32000-2 did not specify restrictions and inclusion rules for the standard structure namespace for PDF 1.7, leaving room for ambiguity.
With the latest release, ISO TS 32005:2023 fills this gap, and extends the hierarchical inclusion rules to encompass both the standard structure namespace for PDF 2.0 and the standard structure namespace for PDF 1.7, in effect unifying the two namespaces. By doing so, it brings unprecedented clarity and consistency to the PDF ecosystem, empowering users to create and share documents with greater precision and accessibility.
The primary objective of this document is to eliminate any confusion and uncertainty surrounding the PDF structure namespaces. By providing comprehensive guidelines, it enables a seamless experience for developers, designers, and end-users alike. These enhanced rules not only address existing challenges, but pave the way for future innovations and advancements in PDF.
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Matthew first started working with PDF technology in 1999, investigating document semantics in PDF as part of his PhD research, sponsored by Adobe. Matthew has worked for Adobe since 2005 in various technical roles and manages teams working on PDF technology spanning the document cloud, including Mobile, Desktop and Web. In addition to his engineering management role, Matthew has been …