If the document was created by using the Create Document idon, it can be converted to a PDF from within the History by following the steps below:
Right click on the History entry.
Click on Convert Document.
Click Convert to pdf.
A File Convert box will be presented. Amend the document details if required.
Click on New Draft or New Version.
The PDF with the relevant Draft or Version number will be placed in the history. The original word document is now locked and cannot be amended, however, it can be resent and a new document can be created from the original.