iPhone

1. Open the Notes app and start a new note.
2. Select the camera icon and choose ‘Scan Documents’.
3. Follow the on-screen instructions. (You can scan multiple pages into one document and edit the scans after you’ve saved them.)
4. Choose ‘Save’ when you’re done taking pictures/scans.
5. Edit the scans as needed (ex. It’s easy to create duplicates by accident, but they can be deleted at this stage. You can also crop the scans at this stage.)
6. Choose the share icon and either AirDrop the PDF to your computer or email it to yourself.
7. If you emailed the file to yourself, download it to your desktop.
8. In Canvas, choose the ‘Upload’ button and select your PDF from the desktop.

Android

From TechWiser – 3 Best Ways to Convert Multiple Images into One PDF File on Android