This is a followup to a question at Apple.stackexchange.com, Why does rotating a TIFF in Preview increase the file size?
One thing I don't like about Preview.app is that even something as simple as rotating an image 90 degrees requires Preview to re-encode the file, adding an alpha channel in the process. This results in a file that is 10% to 20% larger than the original, with no added benefit. This size difference may not matter much on a 5 MB file, but on a 500 MB file, it is a nuisance.
(Interestingly, Preview.app does not increase the file size if you rotate a PDF.)
I gave GraphicConverter 10 a shot. All I did was rotate the TIFF and save, and the file size increased about 60%—it's even worse than Preview.
I tried IrfanView on Windows and it also increased the file size about 60%.
Are there any applications that can rotate a TIFF image 90 degrees without re-encoding it and altering the image in any other way? The source of the TIFF is a scanner, which does not offer a rotation feature.
I did a search and all I found were JPEG programs.
(2013 rMBP) -- (OS X 10.11.4) -- (I am open to Windows programs, too.)