Hello

As an online teacher im looking for the best webinar plateform but i have one essential features you need to handle for i purchase

The live editing document for my learner and I , similar to Classin or Braincert, do you other the possibility to upload a pdf and to annotate it in the virtual classroom

I dont want to share my screen and be the only one to annotate the document but i want my student to be able to annotate it then i can correct his works

Can you handle this features ?