pdf - Change default properties of QRCode using iTextSharp -

pdf - Change default properties of QRCode using iTextSharp -

i have created programme places qrcode on pdf. have used itextsharp purpose. able generated qrcode not able alter default options of margin , scale. please help me changing or verifying code type. next code have written.

idictionary<encodehinttype, object> hints= new dictionary<encodehinttype,object>(); hints.add(encodehinttype.error_correction, errorcorrectionlevel.l); barcodeqrcode qrcoode = new barcodeqrcode(txt_bardata.text.trim(),1,1,hints); itextsharp.text.image imgqr = qrcoode.getimage();

pdf itextsharp qr-code