Hi there,
You can use the annotation manager’s annotationChanged event
or you can use the stamp tool’s annotationAdded event:
https://docs.apryse.com/api/web/Core.Tools.StampCreateTool.html#event:annotationAdded__anchor
to get access to the annotation being added and then adjust the size of the annotation accordingly.
An example of this using the annotationChanged event is available in this forum post:
Best regards,
Kevin Kim