Hello, I’m Ron, an automated tech support bot 
While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages:
Guides:- Remove annotations in viewer
- Hiding annotations in WebViewer notes panel
- XFDF format - In PDF.js Express Web Viewer
- Tools.AnnotationSelectTool - setEnableImmediateActionOnAnnotationSelection(enable)
- Core.Tools.AnnotationEditTool - disableImmediateActionOnAnnotationSelection()
- Tools.AnnotationEditTool - setEnableImmediateActionOnAnnotationSelection(enable)
- How is exportAnnotations() command different from exportAnnotCommand() for exporting annotations?
- Can not unSetToolMode
- Need to highlight annotation on mouse hover
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