Create rectangle annotations in PDFs using Java

Annotations are created using the AnnotationProvider.AddAnnotationJson method. To create an annotation on a page, use the annotation JSON format to add the annotation you want.

Creating rectangle annotations

A rectangle annotation is a type of [shape][shape-guide] annotation.

Here’s an example of adding a rectangle annotation with JSON:

{
  "bbox": [10, 10, 400, 400],
  "blendMode": "normal",
  "creatorName": "Me",
  "opacity": 1,
  "pageIndex": 0,
  "pdfObjectId": 363,
  "strokeColor": "#F74A3E",
  "fillColor": "#FFFB00",
  "strokeWidth": 3,
  "type": "pspdfkit/shape/rectangle",
  "v": 1
}

The JSON can be loaded from a file and added using addAnnotationJson:

String jsonString = Files.readAllBytes(Paths.get("path/to/my-annotation.json")).toString();
document.getAnnotationProvider().addAnnotationJson(new JSONObject(jsonString));