How to use TextHighlightAnnotation with Pixels as unit

Technical Support WebViewer
, , ,
1

WebViewer Version: 10.9.0

Do you have an issue with a specific file(s)? - No
Can you reproduce using one of our samples or online demos? - NA
Are you using the WebViewer server? - No
Does the issue only happen on certain browsers? - No
Is your issue related to a front-end framework? - No
Is your issue related to annotations? - Yes

Please give a brief summary of your issue:
(Think of this as an email subject)
Unable to use TextHighlightAnnotation when bounds are present in Pixels unit

Please describe your issue and provide steps to reproduce it:
(The more descriptive your answer, the faster we are able to help you)
We are integrating with a service which gives us highlighted text information in pixels like

bounds : {
    "bottom": 2652,
    "left": 228,
    "right": 355,
    "top": 2624
  }

I am using following code to highlight text on PDF

const { left , right , bottom , top} = bounds;
const quad = new Math.Quad(
                    left,
                   bottom,
                   right,
                   bottom,
                   right,
                   top,
                   left,
                   top
                );
const textAnnotation = new Annotations.TextHighlightAnnotation({
            PageNumber: page,
            FillColor: new Annotations.Color(255, 255, 0, 1),
            StrokeColor: new Annotations.Color(255, 255, 0, 1),
            Quads: [quad]
        });

        annotationManager.addAnnotation(textAnnotation);
        annotationManager.redrawAnnotation(textAnnotation);

this doesnt highlight anything , though when i try to convert these pixels to something pdftron expects like by dividing each pixel unit by 4 , i am able to see the text highlighted. but to be confident about the approach i need to have the logic to create the conversion factor . can you please provide a solution to this problem as this looks like a very basic use case of highlght.
Please provide a link to a minimal sample where the issue is reproducible:

2

Hello Ajangra,

Thank you for contacting WebViewer Forums.

The bound numbers seem arbitrary and would require more information to fully use within WebViewer. What do those bounds represent? Is that the location of the highlighted text relative to the original document size? What is this original document size in proportion to WebViewer?

It is also possible to grab the quads of the highlight annotation using our API here: Apryse WebViewer Class: TextHighlightAnnotation

Please refer to this documentation for more information on WebViewer and PDF coordinates: Coordinates | Apryse Documentation

Regards,
Luke