EA-PDF is working to define the essential characteristics and optimal functional requirements for archiving email messages using PDF technology.
ISO 32000 is the family of ISO standards that defines the core PDF specification for both PDF 1.7 and PDF 2.0.
ISO 19444 specifies an XML format for representing forms data and annotations in ISO 32000-2 (PDF 2.0). It is the XML equivalent of FDF.
ISO 21757-1 defines the ECMAScript API for automating and interacting with the 2D and 3D content in PDF 2.0 documents.
This free application note summarizes precisely where PDF creators should add XMP metadata to PDF 2.0 objects, and thus where PDF 2.0 processors should search for it.
To help implementers locate the latest information, the PDF Association maintains a page of links to current versions of documents normatively referenced from ISO 32000-2:2020.