private byte[] GetQrCodeArray(ReporteDocumentoFactura obj, string ruc) { var docs = obj.Documento.Split('-'); var listParams = new List <string> { ruc, // RUC Emisor obj.TipoDocumento.ToString("00"), // Tipo Comp docs[0], docs[1], obj.Igv.ToString("0.00"), obj.Total.ToString("0.00"), obj.FechaRegistro.ToShortDateString(), obj.TipoDocCliente.ToString("00"), obj.NroDocCliente }; var qrGen = new CodeQrBarcodeDraw(); var metric = (BarcodeMetricsQr)qrGen.GetDefaultMetrics(30); metric.ErrorCorrection = QrErrorCorrection.Q; var qr = new CodeQrBarcodeDraw().Draw(string.Join("|", listParams) + "|", metric); using (var mem = new MemoryStream()) { qr.Save(mem, System.Drawing.Imaging.ImageFormat.Png); return(mem.ToArray()); } }