Is there a plugin or a native way to create a service where someone can annotate an image. For example a person could put pins/markers on an image that corresponds to a comment or note.
To be more specific of the use-case. I have a 3D architectural rendering company and we need our clients to be able to offer feedback on the renderings that we will provide. Our clients will be presented with an image showcasing their home and we need them to be able to click/mark areas of the image and describe what materials they would like to use for the area marked.