Simple question: how may I insert a barcode number (es. Code 128) in an email source code without having the relative number below ? Is it possible to improve the image quality (the default one is quite low)?
I also had a look on the barcode.jsp source code in the datakit folder on the server, and I find it would be risky to modify it to try to get out the relative number below. ...not to mention that any build update would probably override your change...
And if possible please also share the image result itself, not the email rendering itself. I wonder if it is not your html template that doesn't let enough place for the image gif generated to be displayed at its default size.
I don't know if it exists a 2D barcode format without the relative number below.
I always used EAN 13 so far (or QR Code) with its below number. And I think it is convenient as is, in case of scanner mistake, letting people type it manually.