Impossible to zoom out on image submissions on Speedgrader- Pictures are not scaled to Preview

CaelenLencioni

This behavior has been resolved and deployed to the production environment as of 4/11/25.

Description

• When JPG or JPEG files are submitted, Speedgrader does not scale the document to fit the preview window.

Expected Behavior

• Instead, it should scale the file to fit the preview window or allow for zooming out further. Getting quite a few reports from teachers unable to grade student submissions.

Workaround

No workaround exists at this time.

Steps to Reproduce

1. Create a File Upload submission type assignment

2. As a student, submit a JPG or JPEG file.

3. As a teacher, view the file in Speedgrader Docviewer

4. Notice that the file is not scaled to fit the preview window and it’s not possible to zoom out.

Additional Info

FOO-5180

Known issues indicate notable behaviors that have been escalated to the Canvas engineering team. Known issues are not a guarantee for an immediate resolution. This document is for informational purposes only and does not replace the Support process. If you are encountering the behavior outlined in this document, please ensure you have submitted a Support case (per your institution's escalation process) so Canvas Support can adequately gauge the overall customer impact and prioritize appropriately.