SSSathish Sivakumar Syncfusion Team June 18, 2019 11:14 AM
Greetings from Syncfuson.
At present we do not have support to “Display 3D annotations present in PDF document using PdfViewerControl” . Also we do not have any immediate plans to implement this feature. At the planning stage for every release cycle, we review all open features. We will let you know when this feature is implemented. We usually have an interval of at least three months between releases. The feature implementation would also greatly depend on the factors such as product design, code compatibility and complexity.
You can now track the status of this feature request here