Summary: Discover how to create a simple app using WebViewer, React, and JavaScript to automatically scroll PDFs while narrating videos. I write a lot of blog articles for Apryse, and from time to time I also create tutorial videos. When I’m narrating a video, I usually work from a script. But there’s a problem, when I get to the end of the page, I either need to stop, or else keep recording and edit the audio later to remove the delay that occurs when I scroll to the next page.