Unable to retrieve the uniqueID of an annotation when converted from Core.Annotations.Annotation to PDFNet.Annot

[kkim]

Hi there,

On WebViewer, you can use 2 types of annotations:

• instance.Core.PDFNet.Annot
• instance.Core.Annotations.Annotation

PDFNet.Annot is part of the full API that is generally used to work with server side operations.
Annotations.Annotation is the class within the WebViewer’s client-side JavaScript library, which is used to create and manipulate annotations in the browser.

An example of converting a WebViewer object to PDFNet object can be seen here:

How to convert between WebViewer Annot Rect (Coordinates) to PDFNet Rect

You can convert from WebViewer Annotation Rect to PDFNet Rect like this: const currentDocument = docViewer.getDocument(); const annotRect = await annotation.getRect(); const setTopLeft = currentDocument.getPDFCoordinates(annot.getPageNumber(), annotRect.x1, annotRect.y1); const setBottomRight = currentDocument.getPDFCoordinates(annot.getPageNumber(), annotRect.x2, annotRect.y2); const pdfNetRect = await PDFNet.Rect.init(setTopLeft.x, setTopLeft.y, setBottomRight.x, setBottomRight.y);

You will need to extract the annotation properties and instantiate a new instance of the PDFNet’s annot object.
You can see the required properties for SquareAnnot here:
https://docs.apryse.com/api/web/Core.PDFNet.SquareAnnot.html#main
And the WebViewer’s rectangle annotation:
https://docs.apryse.com/api/web/Core.Annotations.RectangleAnnotation.html#main

Best regards,
Kevin Kim