iTextSharp.text.pdf.PdfLayer.SetLanguage C# (CSharp) Метод

        public void SetLanguage(String lang, bool preferred)
        {
            PdfDictionary usage = Usage;
            PdfDictionary dic = new PdfDictionary();
            dic.Put(PdfName.LANG, new PdfString(lang, PdfObject.TEXT_UNICODE));
            if (preferred)
                dic.Put(PdfName.PREFERRED, PdfName.ON);
            usage.Put(PdfName.LANGUAGE, dic);
        }