Getty Images—probably the biggest supplier of stock photography—has updated their submission requirements to ban the retouching of photos for the sake of making the model look thinner or larger.
They cited a new french law requiring notification of such changes. But regardless of why they did it, I think it’s a good change.
It doesn’t stop the end user from making the same change to the image. But it does mean we have a supply of truthful body images from which we can work.