I started the work using PSPDFKit. I'm trying to do something ... not sure if its doable or supported. I'm trying to group a punch of annotations as one, like create a circle, square and a line, and group them together so I can move them together, copy/paste them as a unit. It's like creating a custom annotation that includes the 3 of them or any other annotations.
Thoughts? I didn't try much here , don't know where to start.