Add squiggly annotation

Squiggly annotation marks text with a squiggly styling like shown at the picture below. 

There is an ability to specify the next properties for SquigglyAnnotation type:

Follow these steps to add Squiggly annotation to document:

  • Instantiate Annotator object with input document path or stream;
  • Instantiate SquigglyAnnotation object with desired properties (position, page number, etc);
  • Call Add method and pass SquigglyAnnotation object;
  • Call Save method with resultant document path or stream.

The following code demonstrates how to add SquigglyAnnotation to the document:

//Add squiggly annotation to the document from local disk
using (Annotator annotator = new Annotator("input.pdf"))
{
	SquigglyAnnotation squiggly = new SquigglyAnnotation
    {
    	CreatedOn = DateTime.Now,
        FontColor = 65535,
        BackgroundColor = 16761035,
        Message = "This is squiggly annotation",
        Opacity = 0.7,
        PageNumber = 0,
        SquigglyColor = 1422623, //Supported only Word and PDF
        Points = new List<Point>
        {
        	new Point(80, 730), new Point(240, 730), new Point(80, 650), new Point(240, 650)
        },
        Replies = new List<Reply>
        {
        	new Reply
            {
            	Comment = "First comment",
                RepliedOn = DateTime.Now
            },
            new Reply
            {
            	Comment = "Second comment",
                RepliedOn = DateTime.Now
            }
        }
    };
    annotator.Add(squiggly);
    annotator.Save("result.pdf");
}

More resources

Advanced Usage Topics

To learn more about document annotating features, please refer to the advanced usage section.

GitHub Examples

You may easily run the code above and see the feature in action in our GitHub examples:

Free Online App

Along with full-featured .NET library we provide simple but powerful free Apps. You are welcome to annotate your PDF, DOC or DOCX, XLS or XLSX, PPT or PPTX, PNG and other documents with free to use online GroupDocs Annotation App.