How do you check the logo at a small size?
It is validated if at the size of a coin, on screen and on paper, the name or the symbol is recognised. A mark that can only be read on a large poster is not signed off.
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Print it at two centimetres and look at it from arm’s length. In the file the detail shows and in the profile photo it is a smudge. You get the reduced version that has passed that test, stored apart from the large one.