This document specifies how to extend the ISO 32000-2 specification by adding the ISO/IEC 12113 (glTF) format as a valid format for 3D artworks contained in a RichMedia annotation. It is intended for:


—     developers of software that creates PDF files (PDF writers);


—     software that reads existing PDF files and usually interprets their contents for display (PDF readers);


—     software that reads and displays PDF content and interacts with the computer users to modify and save the PDF file (PDF processors);


—     PDF products that read and/or write PDF files for a variety of other purposes (PDF processors).


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