<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
Thanks for your inquiry. I took a look inside your document and it is not clear for me where MS Word takes font size. In your document Normal style is not defined, but if open document in MS Word you can see normal style and fonts size = 10. I am not sure why MS Word specifies this font size. We will further investigate the issue and provide you more information.
As a temporary workaround, you can set font size of normal style after opening your document. Please see the following code:
Document doc = new Document("C:\\Temp\\DocxGeneratedWithJasper.docx");
Hope this helps.