For our new Drupal site, it would be ideal if we could manage all images manually. We need to able to resize/crop and put the files where an author decides to put them. The reason is that these images are used in multiple locations, e.g. a podcast and as thumbnail images for the corresponding video. Another reason is that these images are served from a subdomain, which is connected to a CDN (through CloudFlare).
Basically what I/we need is a URL field where an author can paste the image URL, that is then turned into an image on the website. The author would generate the various image types, e.g. thumbnail, medium, large.
I could not figure out what the best approach is to add an image/text field to a content type in order to display the image on the website. Any pointers would be much appreciated!