How to trigger signature panel in PDF viewer?

Question

I'm running the Asp.Net Core PDFViewer control with a custom toolbar.  How can I programmatically trigger the signature input panel as a result of a custom toolbar button click?Thanks!

Chinnamunia Karthik Chinna Thambi · Answer

Please refer to the below code snippet and sample for how
to open the signature panel programmatically.Code snippet:

function openSignPanel(args) {
      var viewer = document.getElementById('pdfviewer').ej2_instances[0];
     viewer.annotationModule.setAnnotationMode("HandWrittenSignature");
  }

Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/OpenSignaturePanel1990453479.zipSteps to open the signature panel programmatically:
 Run the above sample.
 Click the "Open signature panel"
     button to open the signature panel.