public override void Draw(DrawContext drawContext) { base.Draw(drawContext); PdfLinkAnnotation linkAnnotation = new PdfLinkAnnotation(GetOccupiedAreaBBox()); linkAnnotation.SetHighlightMode(PdfAnnotation.HIGHLIGHT_INVERT); linkAnnotation.SetAction(PdfAction.CreateURI(url)); drawContext.GetDocument().GetLastPage().AddAnnotation(linkAnnotation); }