Issue: Canvas - Can't upload file


  • When trying to upload a file to Canvas into Files, as part of a discussion post, or to an assignment, the file fails to upload.


  • Oregon State University
  • Student
  • Canvas


There are several file limits set in Canvas. If the file size exceeds the established limits, the file upload will fail.

  • The default User File Limit in Canvas is 50 MB. However OSU has increased that limit to 1 GB. This limit applies to file uploaded to the Files area listed in a user's Canvas account. Canvas discussion post file attachments count against the User File Limit, so users can have issues attaching a file to a discussion post if their User File storage is full.
  • Canvas assignment submissions are limited to 5 GB. However, if Turnitin is enabled, Turnitin has a file size limit of 40 MB. A student’s submission to a course assignment will not count against their personal file limit.
  • The default course canvas limit is 500 MB . However, OSU has increased that limit to 1 GB. This limit applies to any files uploaded to the Files section of the course. This limit generally only impacts faculty trying to upload content to the Canvas course.


This issue could be caused by a number of factors. If Turnitin is enabled, check that the file size is not greater than 40MB. Consider using built-in features of document creation software e.g., Adobe Acrobat or Microsoft Office, to compress image or files to reduce the size of the file.

For other issues, students should contact the course instructor for assistance.



Article ID: 90270
Wed 10/23/19 2:12 PM
Sat 10/17/20 11:19 AM