1. GroupDocs Documentation
    2. /
    3. GroupDocs.Annotation Product Family
    4. /
    5. GroupDocs.Annotation for .NET
    6. /
    7. Annotation basics
    8. /
    9. Add component to the document
    10. /
    11. Add button component

    Add button component

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    Button component creates a button component as shown in the picture below:

    You can specify the following properties of the ButtonComponent class:

    • Box defines the annotation position
    • PenColor defines the frame color

    To add a button component, follow these steps:

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

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

    using (Annotator annotator = new Annotator("input.pdf"))
{
	ButtonComponent button = new ButtonComponent
    {
        CreatedOn = DateTime.Now,
        Style = BorderStyle.Dashed,
        Message = "This is button component",
        BorderColor = 1422623,
        PenColor = 14527697,
        ButtonColor = 10832612,
        PageNumber = 0,
        BorderWidth = 12,
        Box = new Rectangle(100, 300, 90, 30),
        Replies = new List<Reply>
            {
                new Reply
                {
                    Comment = "First comment",
                    RepliedOn = DateTime.Now
                },
                new Reply
                {
                    Comment = "Second comment",
                    RepliedOn = DateTime.Now
                }
            }
    };
    annotator.Add(button);
    annotator.Save("result.pdf");
}

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