Need to superimpose one georeferenced jpg onto a georeferenced tiff

[DougWolfinger2]

Hello

I have georeferenced a map and rectified it as a tiff file. I resized the terrain in the map, so I saved it as a jpg and intend to overlay it onto the georeferenced tiff. This will enable me to measure the difference in size of the terrain between the original map (tiff file) and the new one. It will save time since the additional area is much smaller than the area of the whole terrain.

When I add the new map to the same view the old one already occupies, and select Fit to Display, the old one disappears. Then I select Fit to Display for old map and that makes the new one disappear. How can I do this? Thanks

[JimCousins]

Try going to the folder location of the jpg file, and delete all of the files with the same name, but different extentions (ie: if your file is terrain.jpg, delete terrain.aux.xml and terrain.ovr and terrain.jgw etc.) then when you add it back in to the map for georeferencing, it should behave as expected.
Regards,
Jim