Can you please tell me the secret to determining how to size a photo that looks perfectly fine in desktop/computer viewed emails that ALSO looks proportional on a mobile device - this applies to handwritten signatures, too. When I insert a scanned signature of a name, it often looks fine in computer/desktop view, but it gets HUGE in mobile view. Resizing it makes it look grainy and pixelated - and still too big for the mobile view. Photos do the same thing at times. Please help!
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