The layouts of a DWG model, as the server derived them (DWG_SEMANTIC_JSON_1), and of a geometry PDF, whose pages the viewer maps onto layouts (PDF_SEMANTIC_JSON_1): Viewer3d.getDwgSemanticsMap, Viewer3d.addDwgSemanticsListener
The drawing's layer table; empty for a PDF
Model space first, then the sheets (paper space layouts) in tab order; for a PDF one per page, page 1 as model space
The format version, 1
The layouts of a DWG model, as the server derived them (DWG_SEMANTIC_JSON_1), and of a geometry PDF, whose pages the viewer maps onto layouts (PDF_SEMANTIC_JSON_1): Viewer3d.getDwgSemanticsMap, Viewer3d.addDwgSemanticsListener