Building on Garrett Hall suggestion, you can use gdal_translate, and a GeoTIFF format specific setting that prevents GDAL from writing any GeoTIFF tags to the output file. If the georeferencing information is stored externally to the original file as a world file then it can be easily applied to the new corrected TIF.
This assumes that you have QGIS installed and is written from a MS Windows standpoint:
- Open a OSGeo4W command prompt - this should be found under the Quantum GIS start menu folder with a shortcut called 'OSGeo4W'
Enter the following command at the prompt. You can copy and paste, but note that the Ctrl+v shortcut doesn't work on the command prompt, you have to right click instead.
gdal_translate -co PROFILE=BASELINE ProblematicTIF CorrectedTIF
Replacing ProblematicTIF with the full path to your problematic TIF file, enclosed in double quotes, and CorrectedTIF with the full path to the corrected file that will be created, again in double quotes (there's no option to overwrite with this method unfortunately, a new file has to be created).
An example would be:
gdal_translate -co PROFILE=BASELINE "C:\GeoRefencing\Highfield_Campus.tif" "C:\GeoRefencing\Highfield_Campus_corrected.tif"