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- Nov 16, 2011
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I just spent the entire day at a genealogy library, copying images to my thumb drive (and paying for the privilege). The images were saved as TIFF files, and within TIFF, JPEG compression. Files will not open, even in preview. Someone suggested that the JPEG format at the library is old JPEG and that I should adjust the TIFF compression to LZW. But I can't figure out how to do that on my MacBook Pro; I cannot view the files; I cannot open them. HELP!