Read the small print Read the Terms and Conditions, Privacy , and any other pages that a site and make sure you are not giving that business the rights to your image. Many sites have wording similar to this: You grant non-exclusive royalty free rights to your uploads to that company. They generally also can sell your image, share and allow others to the usage of your images. the non-exclusive royalty free rights means they can reproduce, mass produce and you have no recourse