As far as I know (and I'm not an expert in this field) - too high resolution is as bad as a too small res... And any automated downsample/upsample can go wrong... So, ideally, it's recommended to upscale/downscale, RGB-2-CMYK conversion, scaling/rotation, etc. image manipulations be made in image editing software, such as Photoshop, and then be placed as is in InDesign... But it's pretty hard to scale/rotate/prepare image for layout without seeing layout, so personally, I prefer not to open Photoshop if it's not absolutely necessary (I'm a freelance magazine designer, dealing with hundreds of images weekly, so I can't edit each of them manually)
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