iTextSharp.text.pdf.PdfAppearance.CreateAppearance C# (CSharp) Метод

        public static PdfAppearance CreateAppearance(PdfWriter writer, float width, float height)
        {
            return CreateAppearance(writer, width, height, null);
        }

        public void DrawButton(PdfFormField button, string caption, BaseFont font, float fontSize, float llx, float lly, float urx, float ury)
        {
            PdfAppearance pa = PdfAppearance.CreateAppearance(writer, urx - llx, ury - lly);

            pa.DrawButton(0f, 0f, urx - llx, ury - lly, caption, font, fontSize);
            button.SetAppearance(PdfAnnotation.APPEARANCE_NORMAL, pa);
        }