Manual comparison...

[alexpgp]

The document I'm working on right now showed up in its previous iteration with revisions turned on, but the nine additional pages of text—which were included as images—did not show up as revisions.

So now the document has shown up for rework, and there is only one way—short of slogging through the text—to see if there have been any changes made to the images: print them out and then align the old and new printed pages and hold them up to a light.

Whatever works!

Cheers...