iTextSharp.text.pdf.AcroFields.GetFieldType C# (CSharp) Метод

        public int GetFieldType(String fieldName) {
            Item fd = GetFieldItem(fieldName);
            if (fd == null)
                return FIELD_TYPE_NONE;
            PdfDictionary merged = fd.GetMerged( 0 );
            PdfName type = merged.GetAsName(PdfName.FT);
            if (type == null)
                return FIELD_TYPE_NONE;
            int ff = 0;
            PdfNumber ffo = merged.GetAsNumber(PdfName.FF);
            if (ffo != null) {
                ff = ffo.IntValue;
            }
            if (PdfName.BTN.Equals(type)) {
                if ((ff & PdfFormField.FF_PUSHBUTTON) != 0)
                    return FIELD_TYPE_PUSHBUTTON;
                if ((ff & PdfFormField.FF_RADIO) != 0)
                    return FIELD_TYPE_RADIOBUTTON;
                else
                    return FIELD_TYPE_CHECKBOX;
            }
            else if (PdfName.TX.Equals(type)) {
                return FIELD_TYPE_TEXT;
            }
            else if (PdfName.CH.Equals(type)) {
                if ((ff & PdfFormField.FF_COMBO) != 0)
                    return FIELD_TYPE_COMBO;
                else
                    return FIELD_TYPE_LIST;
            }
            else if (PdfName.SIG.Equals(type)) {
                return FIELD_TYPE_SIGNATURE;
            }
            return FIELD_TYPE_NONE;
        }
        

        /// <summary>
        /// Set font family and font size on all text fields for consistency
        /// </summary>
        /// <param name="stamperFields">
        /// PdfStamper.AcroFields - so we can set the form field value here.
        /// </param>
        /// <param name="family">BaseFont</param>
        /// <param name="size">Desired size</param>
        public static void SetTemplateFont(AcroFields stamperFields, BaseFont family, float size)
        {
            // ignore everything except text fields
            var textFields = stamperFields.Fields.Keys
                .Where(x => stamperFields.GetFieldType(x) == AcroFields.FIELD_TYPE_TEXT
                    && GetFontSize(stamperFields, x) != 0f
                )
                .ToDictionary(k => k);

            Console.WriteLine(string.Join(" :: ", textFields.Keys.ToArray()));

            foreach (var key in textFields.Keys)
            {
                stamperFields.SetFieldProperty(key, "textfont", family, null);
                stamperFields.SetFieldProperty(key, "textsize", size, null);
            }
        }