I want to limit the user to only upload profile pictures of 160x160 size. What is the simplest way to validate that the resolution of uploaded avatar picture is actually 160x160, and provide an error message if it's not?
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I want to limit the user to only upload profile pictures of 160x160 size. What is the simplest way to validate that the resolution of uploaded avatar picture is actually 160x160, and provide an error message if it's not?