doc to dxf conversion is a curious case of import/export between MS Word document and DXF CAD drawing, something that is certainly not doable as direct file conversion. What some users are exploring actually is the possibility of inserting texts inside CAD drawings, which is actually doable, but the solution depends on the purpose.
You can find converters that advertise this, but their results are probably not what you were looking for. You might get best info if you reach out to the online CAD community for help with your particular issue.
Updated: October 10, 2023