content: So I have been using OneNote for Android on my Chromebook that has a touchscreen. I download PDFs that I need to write on and instead of paper I use the OneNote writing tool. Recently the app has changed the way it looks and I assumed there had been an update. This has brought an issue to light as when I try to open a PDF the way I always have it says  OneNote cannot open the file. Try opening in another app to make sure the file is not damaged. The thing here is it is not damaged.