Sorry but you are wrong. I’m a professional photographer and graphics designer and dpi it only a reference number.
That number us useless until you goto final print. All you have to do it change the DPI which will make the image smaller, which if you read what I said is why I stated you may have to paste them into a new document. As an example one image of Scorpion is is 4000 × 2657, the 72dpi is pointless at this point, if I were going to print this I’d still print it at high DPI, at 300DPI that is still 13.33 (4000/300) x 8.856 (2657/300) inches. Never look at the DPI in the meta data it will always steer you wrong just look at the pixel data and do the math yourself.