What’s the difference between copyright and licence?

A big one! Holding the copyright of the image and obtaining a licence for the image are two completely different things. If you are the copyright holder, the image is yours to play with - you can do whatever you want with it, use it wherever you want and however you want. However, normally only the creator of an image is the copyright holder, so odds are you'll only get a licence right for it when you purchase it. When you get a licence to use it, it entitles you to use the image in a particular way,. A certain number of copies, geographical restrictions or restrictions on the media where it will be used - all of these are normally written on the contract. You must pay attention to follow these restrictions.