I've come across an instance where a map was scanned incorrectly.  The map was on very thin vellum paper and was scanned on the backside of the map rather than the front side.  The image is actually quite clear, so I am hoping there is a way to mirror the image that was produced.  Is this possible in LF?

The map was scanned years ago, but no one noticed until now.  The original map is very delicate, so I would love to avoid having to scan it a second time.

Please note that I am not talking about rotating the document.  I need the actual image flipped.