![]() ![]() If you'd use maximum JPEG quality these would be minimized but still not none. The stronger the compression the more JPEG noise or artefacts. You can more or less always tell that a certain image was saved as a JPEG because in areas with strong contrast you can see the JPEG compression artefacts. Nowadays these things are more similar yet I'd still rather use TIFF/CMYK because of lossless (saved image is same as original) compression and output control. Since I used to do prepress a couple of decades ago I feel natural using TIFF whenever preparing anything for press/print because I can easily control the outcome. Since RGB -> CMYK conversion used to be bad on prepress machines it was perfectly normal to prepare all images in CMYK format and saved in TIFFs. and not take the risk that the resulting image (once again saved) would become useless with each save. If you want your images to stay as true to original as possible I'd rather go with TIFF format (with compression) because I can later open it, manipulate it, etc. Nothing would change in terms of image data.
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