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TIFF is just a image container. I'd make sure when you save as TIFF, you specify a bit depth equal to your source image, and a format that isn't lossy (like sta
by mceachen 6y ago
TIFF is just a image container. I'd make sure when you save as TIFF, you specify a bit depth equal to your source image, and a format that isn't lossy (like standard JPEG).
If you've got a standard sRGB 8-bit-per-channel image, though, the loss from JPEG at q95 or q100 is negligible, and means your image still enjoys wide app compatibility.
If it's something else (like a raw format from a DSLR), the best you can do is retain the original file.
Also: don't forget file metadata! I inadvertantly deleted all EXIF headers from a number of my original images many years ago because I used jpegtran (without the -copy option!) to losslessly rotate images. I ended up adding a bunch of heuristics in PhotoStructure to automatically infer missing metadata to repair this mistake.