You can generate dynamic renditions of an asset using an existing public link without regenerating a new public link by using transformations. You can transform both simple and chained public links using the t=[transformation_name] parameter in the public link. For example,
https://<sitecore instance>/api/public/content/Figure1-cropped?&t=w320 resizes the image to a width of 320 pixels.
Available transformations include width, height, and quality. Which transformations you can use depends on how your Content Hub solution is configured.
You do not need to send the request directly to the media delivery service (MDS). The request URL is built transparently when using Content Hub.