QR Code Sizing in ZPL Output

Hi,

I want to print a QR-Code with variable content on a Zebra Printer with ZPL. The handicap is that the size of the QR-Code should always be the same.

I have tried to change the XDC as described in SAP-Reference 1923734. After restarting the XML-Form-Module on the Document-Server it had no effect.

If the content of the barcode increases the size of the barcode increases as well.

What am I doing wrong?

thanks & best regards

Frank