I have developed a cloud application for my company and its in production now. My team now wants me to add one more feature to it. This feature will be a PDF editor. We do a lot of pdf editing on another software but if I can add that feature to the application I built, it will be a time saver. I have built couple cloud applications but not a PDF editor so I am not too sure how to go about this. I know on the frontend user will upload the pdf file and then call a post api to the server to interpret the pdf content and send it back to be displayed on the frontend? Am I thinking right? I am using nodejs for the backend. Node has pretty solid file apis.