How do I lock files and folders in Canvas?
By default course files are visible and accessible to all users. Teachers and TAs can lock files and folders, which means the content will only be accessible to teachers and TAs in the course.
Select Lock Settings
There are two lock options. Click the Let students download... checkbox  to let students view the file only if you link to it, but will not allow students to access the file via the Files tool. Click the Lock until I manually unlock it checkbox  to manually lock the file. Click the Lock this File button .
Note: You can set a lock date on a file or folder.
Set Lock Date
Type the date you wish to the lock the file until in the Lock Until field . Type the date you wish to lock the file after in the Lock After field .
Note: Make sure the Lock until I manually unlock it checkbox is not checked. Otherwise the Lock Until or Lock After fields will not appear.
Currently the setting for Lock Until and/or Lock After is set up to only accept input in very specific format. You will be able to set the lock by using one of the following inputs:
- dd/mm/yyyy 00:00 (24hr) Ex. 27/02/2013 23:59
- dd/mm/yyyy 00:00am/pm Ex. 27/02/2013 11:59pm
- Mon Da 00:00am/pm Ex. Feb 27 11:59pm
- Mon Da 00:00 (24hr) Ex. Feb 27 23:59
Note that the time field is optional and if not selected it will default to 12am.
Click the Lock this File button .