Thank you for contacting support. Please note, it’s not caption text. It is an evaluation watermark. It is visible because you have not applied a valid license for Aspose.BarCode API. You can get30 days temporary license. It is for testing purposes. If you want to avoid its evaluation limitation, you need to set a license before utilizing Aspose.BarCode. It is only required to set a license once per application (or process). The license can be loaded from a file, stream or an embedded resource. You need to initialize License class object and call its SetLicense method. It is the same approach as you initializing BarCodeBuilder class object.
Please download the latest version of Aspose.BarCode API and apply license as follows: