Camscanner is one of the apps I always recommend to fellow science teachers cuz our resources are diagrams heavy. One of the best scanning app. It can even auto-remove shadow and it’s auto and magic colour setting is amazing! I’m rarely disappointed with the outcome. Major plus point- there’s no watermark for their jpg files. It’s also convenient cuz you can share it via many options after that, including dropbox and email.
Ok, go download Camscanner now!