1. GroupDocs Documentation
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    3. GroupDocs.Annotation Product Family
    4. /
    5. GroupDocs.Annotation for .NET
    6. /
    7. Annotation basics
    8. /
    9. Add annotation to the document
    10. /
    11. Add strikeout annotation

    Add strikeout annotation

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    Strikeout annotation strike-throughs a text fragment as shown in the picture below:

    You can specify the following properties of the StrikeoutAnnotation class:

    • FontColor defines the color of the annotation text
    • Opacity allows you to set the annotation opacity
    • Points defines the annotation positions as array of points

    To add a strikeout annotation, follow these steps:

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

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

    //Add strikeout annotation to the document from local disk
using (Annotator annotator = new Annotator("input.pdf"))
{
	StrikeoutAnnotation strikeout = new StrikeoutAnnotation
    {
    	CreatedOn = DateTime.Now,
        FontColor = 65535,
        BackgroundColor = 16761035,
        Message = "This is strikeout annotation",
        Opacity = 0.7,
        PageNumber = 0,
        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(strikeout);
     annotator.Save("result.pdf");
}

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