Namespace pdftronprivate.PDF.Annots Classes Caret CheckBoxWidget Circle ComboBoxWidget FileAttachment FreeText Highlight Ink Ink.BlendMode Line Link ListBoxWidget Markup Movie Polygon PolyLine Popup PushButtonWidget RadioButtonGroup RadioButtonWidget Redaction RubberStamp Screen SignatureWidget Sound Square Squiggly StrikeOut Text TextMarkup TextWidget Underline Watermark Widget