A barcode is a font that is composed of lines, pixels or spaces and which can be read by optical electronics. In addition, graphically integrated codes such as Digimarc technology are gaining ground. Optical reading devices, for example, the cashdesk scanning systems of stores, can machine read the data and process it. But, this technology may also be used to secure production processes, for example, to effectively prevent products from getting mixed up. Our procedures ensure the readability of a code on the packaging.