How can I find the PDF coordinates of an annoation in WebViewer?

[Aaron]

Q:

I want to find the coordinates, in PDF space, of an annotation in WebViewer.  Is that possible?

A:

You should be able to get the XOD page coordinates of an annotation by using Annotation.GetX() and Annotation.GetY():
https://www.pdftron.com/webviewer/demo/lib/html5/doc/symbols/Annotations.Annotation.html#GetX

To convert these XOD coordinates to PDF page coordinates, use Document.GetPDFCoordinates:
https://www.pdftron.com/webviewer/demo/lib/html5/doc/symbols/CoreControls.Document.html#GetPDFCoordinates