The EAN13 standard , as its name indicates, consists of 13 digits. It is not possible to enter more, so iTextSharp intelligently truncates the data that you pass to it so that it complies with the norm.
If you need 18 characters, you can try some other type of barcode, such as Code-128
The EAN13 standard , as its name indicates, consists of 13 digits. It is not possible to enter more, so iTextSharp intelligently truncates the data that you pass to it so that it complies with the norm.
If you need 18 characters, you can try some other type of barcode, such as Code-128