Ellipse Annotations

Ellipse annotations are one of the basic shapes for annotating. You can use this to circle certain areas on a document to bring attention to them.

Ellipse annotations can have both a fill and stroke color. The stroke or border style can also be changed to between a solid or dashed. The cloudy style is not supported.

WebViewer(...)
  .then(instance => {
    const { documentViewer, annotationManager, Annotations } = instance.Core;

    documentViewer.addEventListener('annotationsLoaded', () => {
      const annot = new Annotations.EllipseAnnotation({
        PageNumber: 1,
        X: 100,
        Y: 50,
        Width: 150,
        Height: 25,
        StrokeColor: new Annotations.Color(0, 255, 0, 1), 
      });

      annotationManager.addAnnotation(annot);
      annotationManager.redrawAnnotation(annot);
    });
  });

Element name: circle

<circle page="0" rect="241.520,578.270,344.750,641.790" color="#E44234" flags="print" name="600ca455-44a4-f8ff-6132-dcbec1013ba3" title="Guest" subject="Ellipse" date="D:20220602170947-07'00'" creationdate="D:20220602170946-07'00'"/>

Gets or sets the page number of a document that the annotation appears on.

Gets or sets the annotation's x-axis position.

Gets or sets the annotation's y-axis position.

Gets or sets the height of the annotation.

Gets or sets the width of the annotation.

For the full list of properties, please visit the annotation's API docs.

Gets or sets the color of the annotation's interior.

Gets or sets the color of the annotation's stroke.

Gets or sets the width of the annotation's stroke outline.

Gets or sets the border style of an annotation. Possible styles include:

• solid
• dash

Gets or sets the border dash style of an annotation. This expects a string representing the length of dashes and spacing inbetween, delimited by commas (ex. 3, 3). You can specify any amount of lengths but, an odd number of values will be made even by cloning it as a second set. To understand further, you can read more about the setLineDash API.

The author of the annotation.

Gets or sets the annotation's stroke color.

Gets or sets whether the annotation is hidden.

Gets or sets whether the annotation is invisible, only if it is an unknown annotation type. Generally for hiding annotations you should use "Hidden".

Gets or sets whether any parts of the annotation drawn outside of the rect are clickable.

Gets or sets whether the annotation should be listed in annotation lists. If set to false, the annotation will also become unselectable.

Gets or sets whether the annotation is locked or not. If it's locked it can't be edited or deleted, but the note can be edited.

Gets or sets whether the annotation contents are locked or not. If the contents are locked then note can't be edited but the annotation can be edited or deleted.

Gets or sets if this annotation can be deleted.

Gets or sets whether or not the annotation can be moved.

Gets or sets if this annotation can be resized by the user.

Gets or sets if this annotation can be rotated.

Gets or sets whether the annotation is visible on the screen. Differs from Hidden in that it can still be printed if the print flag is set.

Gets or sets if this annotation scales with the page.

Gets or sets the opacity of the annotation.

Gets or sets whether the annotation should be displayed when printing the page.

Gets or sets whether the annotation is readonly or not. If it's readonly both the annotation itself and its note can't be edited or deleted.

Gets or sets whether the ToggleNoView flag is set on the annotation.

Although ellipse annotations have both move and resize APIs, it also provides a setRect API which effectively does both which makes it worthy to note.

WebViewer(...)
  .then(instance => {
    const { annotationManager, Annotations } = instance.Core;

    annotationManager.addEventListener('annotationChanged', (annotations, action) => {
      if (action === 'add') {
        annotations.forEach(annot => {
          if (annot instanceof Annotations.EllipseAnnotation) {
            const rect = annot.getRect();
            rect.X = Math.round(rect.X);
            rect.Y = Math.round(rect.Y);
            rect.Width = Math.round(rect.Width);
            rect.Height = Math.round(rect.Height);

            annot.setRect(rect);
          }
        });
      }
    });
  });