Thanks for your inquiry. Please use the latest version of Aspose.Words for JasperReports 1.7.0 and use theAWExporterParameter.POSITIONED_STYLEparameter as described below:
Create style form Styles sub-tree (in iReports Designer) e.g “style1” and use this style in text field.
Use the AWExporterParameter.POSITIONED_STYLE as highlighted in following code snippet.
Thanks for the details. Could you please attach your JRXML file along with data source (if required) here for testing? I will investigate the issue on my side and provide you more information.