Add Wavy Underline to Text in Word, PDF, PPT and other Documents using C#

readme.md

Related blog post: Wavy Underline the Text in Documents using C#

AddSquigglyAnnotationToPDF.cs

/*
 * Add wavy underline (Squiggly Annotation) to text in PDF file using C#
 */
using (Annotator annotator = new Annotator("path/document.pdf"))
{
    SquigglyAnnotation squiggly = new SquigglyAnnotation
    {
        FontColor = 0xFF0000,
        Opacity = 0.5,
        PageNumber = 0,
        Points = new List<Point>
        {
            new Point(20, 100),
            new Point(150, 100),
            new Point(20, 130),
            new Point(150, 130)
        }
    };
    annotator.Add(squiggly);
    annotator.Save("path/squiggly-document.pdf");
}

AddSquigglyAnnotationToWord.cs

/*
 * Add wavy underline (Squiggly Annotation) to text in DOC, DOCX files using C#
 */
using (Annotator annotator = new Annotator("path/document.docx"))
{
    SquigglyAnnotation squiggly = new SquigglyAnnotation
    {
        BackgroundColor = 0xFFF000,
        FontColor = 0xFF0000,
        Message = "This is Squiggly Annotation",
        CreatedOn = DateTime.Now,
        Opacity = 0.5,
        PageNumber = 0,
        Points = new List<Point>
        {
            new Point(20, 170),
            new Point(290, 170),
            new Point(20, 200),
            new Point(290, 200)
        }
    };
    annotator.Add(squiggly);
    annotator.Save("path/squiggly-document.docx");
}