https://community.instructure.com/en/discussion/comment/538262
Speedgrader is not showing Annotation tools - Instructure Community
SpeedGrader is not showing me the usual annotation tools. It has zoom, full-screen, and rotate buttons, but there is no highlight, annotate, etc. Instead, it...
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https://classhelp.screenstepslive.com/a/1961474-modernized-speedgrader
Modernized Speedgrader | Canvas Fundamentals | Class Help
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https://kb.wisc.edu/luwmad/news.php?id=12597
Learn@UW Knowledgebase : Canvas - DocViewer Errors Affecting SpeedGrader (5/13) [RESOLVED]
learnuwknowledgebasecanvas