Hi Tom.Chivers.Goldsmiths,
Kindly try the steps mentione below and then try the conversion.
- Open Acrobat>Edit>Preferences
- Go to Convert from PDF under categories and select Word document from the right hand side menu
- Click on Edit settings>select “Retain Page Layout
- Click OK
- Restart Acrobat and retry to export the PDF
Thanks,
Vikrantt Singh