iTextSharp.text.pdf.PdfEncodings.IsPdfDocEncoding C# (CSharp) Метод

    public static bool IsPdfDocEncoding(String text) {
        if (text == null)
            return true;
        int len = text.Length;
        for (int k = 0; k < len; ++k) {
            char char1 = text[k];
            if (char1 < 128 || (char1 > 160 && char1 <= 255))
                continue;
            if (!pdfEncoding.ContainsKey(char1))
                return false;
        }
        return true;
    }

 public override byte[] GetBytes()
 {
     if (bytes == null)
     {
         if (encoding != null && encoding.Equals(TEXT_UNICODE) && PdfEncodings.IsPdfDocEncoding(value))
         {
             bytes = PdfEncodings.ConvertToBytes(value, TEXT_PDFDOCENCODING);
         }
         else
         {
             bytes = PdfEncodings.ConvertToBytes(value, encoding);
         }
     }
     return(bytes);
 }