I have been looking for a team project tool for a while and this has been one I have piloted. After reading your article, I logged back into the app and was interested to see how it integrates with our file storage standard google drive. It appears to bring the file in as a pdf and not allow any markup. You can comment as a team but it creates duplication and confusion to have a second pdf version of a file i want to collaborate on in Google drive. Can someone explain how to approach file storage and collaboration?