Load specific sheet and get its thumbnail

The blog discusses three extensions for presenting 2D sheets: LeafletLoader, PDFLoader, and F2DLoader. It describes how to load documents using APIs like Autodesk.Viewing.Document.load and viewer.loadDocumentNode for LeafletLoader and F2DLoader, and viewer.loadModel for PDFLoader. It also mentions the DocumentBrowser extension for switching sheets and retrieving sheet thumbnails using Autodesk.Viewing.Thumbnails.getUrlForBubbleNode. Overall, the text provides practical coding examples for managing 2D sheet presentations.
You can find additional details in this blog