Which I believe is built with annotatorjs [1]. I have used that library on a couple of projects and it's been around for quite a while. [1] https://github.com/

Which I believe is built with annotatorjs [1]. I have used that library on a couple of projects and it's been around for quite a while. [1] https://github.com/openannotation/annotator/ https://github.com/openannotation/annotator/