Unfortunately, there is no way to tell.
See my post above. I decided to run an experiment on a document that I scanned with Photoshop. It's a .png not .jpg but the word Photoshop appears in the file header when viewed with a Hex Reader. So I conclude that seeing Lead or ULead in the header of the Bomford document is not really a clue. It just tells us that the document was scanned with some imaging software.
Which just shows that you just can’t tell from a photo posted on the web what the real truth is.
You need to examine the actual document IF it exists!
On the other hand, if this is ‘fake’ document made from the scanned one, then it would just be one of many clues.
Still not conclusive though.