How do I add a file to my course?
You can add a file to your course by uploading a file. You can also import files using the course import tool.
Note: Instructors can drag and drop files from their personal files into course files.
Note: Video and audio uploads to Canvas through the media tool can be up to 500 MB in size.
Click the Upload button.
Add Files via Drag and Drop
Some web browsers contain a unique feature that allows the user to add to files by simply dragging and dropping the files from a file window directly into the Canvas file repository. Click the title of the file you wish to add  and drag the file to your open browser . Your file will automatically upload.
Replace Duplicate File
View your new file in the course.