Add underline annotation

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GroupDocs.Annotation allows you to underline text as shown in the picture below:

You can use the following methods to set the properties of the UnderlineAnnotation class:

To add an underline annotation, follow these steps:

  1. Instantiate the Annotator class. Specify the input document path or stream.
  2. Instantiate the UnderlineAnnotation class. Specify the appropriate properties (position, page number, etc).
  3. Call the add() method. Specify the UnderlineAnnotation class.
  4. Call the save() method. Specify the output document path or stream.

The following code snippet shows how to add UnderlineAnnotation to the document:

// This example demonstrates adding text underline annotation.

// Create an instance of Annotator class
Annotator annotator = new Annotator("inputPath");
try {
    // Create an instance of Reply class and add comments
    Reply reply1 = new Reply();
    reply1.setComment("First comment");
    reply1.setRepliedOn(Calendar.getInstance().getTime());

    Reply reply2 = new Reply();
    reply2.setComment("Second comment");
    reply2.setRepliedOn(Calendar.getInstance().getTime());

    java.util.List<Reply> replies =  new ArrayList<Reply>();
    replies.add(reply1);
    replies.add(reply2);

    Point point1 = new Point(80, 730);
    Point point2 = new Point(240, 730);
    Point point3 = new Point(80, 650);
    Point point4 = new Point(240, 650);

    List<Point> points = new ArrayList<Point>();
    points.add(point1);
    points.add(point2);
    points.add(point3);
    points.add(point4);

    // Create an instance of AreaAnnotation class and set options
    UnderlineAnnotation underline = new UnderlineAnnotation();
    underline.setCreatedOn(Calendar.getInstance().getTime());
    underline.setFontColor(65535);
    underline.setMessage("This is underline annotation");
    underline.setOpacity(0.1);
    underline.setPageNumber(0);
    underline.setPoints(points);
    underline.setReplies(replies);
    
    // Add annotation and save to file
    annotator.add(underline);
    annotator.save("outputPath");
} finally {
    if (annotator != null) {
        annotator.dispose();
    }
}

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