PdfAcroFormCheckBoxField.AddWidget Method

Name	Parameters	Description
AddWidget(PdfRectangle)	rectangle	Adds a widget annotation related to the check box. The widget is added to the page where the form field is located.
AddWidget(Int32, PdfRectangle)	pageNumber, rectangle	Adds a widget annotation related to the check box. Allows you to specify a page to which the widget should be added.