How does 3D PDF work?
A PDF file is a self-contained document file. PDF files can be displayed for reading using various PDF viewers. A 3D PDF is a little special, inside the document there is a 3D viewing window, where you can rotate, zoom and pan the contents of a 3D scene. The actual data for the 3D view is embedded inside the PDF file. Not all PDF viewers support 3D – if in doubt, use the Adobe Reader for viewing 3D PDFs. How 3D PDFs are constructed is covered by internationally agreed ISO standards.