When viewing assignment submissions, you may be able to add annotated comments in the submission. Canvas DocViewer is a tool that allows annotations in online assignment submissions. Annotations made in Canvas Teacher sync with SpeedGrader in the web version of Canvas.
If a student submits a file that is not compatible with DocViewer, the document previewer will still display the file, but DocViewer markup and commenting will not be available.
When you open a submission, DocViewer will automatically save any annotations made to the submission file for one hour. You can restart a DocViewer session at any time by refreshing the submission page.
The images in this lesson are shown for a phone display, but unless otherwise noted, tablet displays mirror the same steps.
- Files over 100 MB and password-protected files will not be converted by DocViewer.
- SpeedGrader may take up to ten minutes after an assignment is submitted to display a document that supports DocViewer.
Files that are compatible with DocViewer display the DocViewer Toolbar at the top of the document and includes six different annotation types. Select an annotation tool by tapping the annotation icon. To stop using an annotation tool, tap the annotation icon again.
If a submission includes more than one page, view the additional pages by swiping up your screen.
Add Text Annotation
To add text directly in the submission, tap the Text Annotation icon .
Tap the color for the text annotation in the color panel .
Tap the area where you want to add the annotation .
In the text field , enter the text you want to add for the annotation. Tap the OK link .
Add Point Annotation
To leave a point annotation, tap and hold the Text Annotation icon . Then tap the Point Annotation icon .
Tap the area where you want to add the annotation . Then tap the color for the point annotation in the color panel .
Add Highlight Annotation
To highlight text within the document, tap and hold the Text Annotation icon . Then tap the Highlight Annotation icon .
To change the highlight color, tap the Color icon .
Tap and drag to highlight text within the submission .
Add Strikeout Text Annotation
To indicate that text should be deleted, tap and hold the Text Annotation icon . Then tap the Strikeout icon .
To change the strikeout color, tap the Color icon .
Tap and drag to strikeout text within the submission. A line will appear indicating the text has been struck out .
Add Draw Annotation
To make freehand drawings and annotations, tap the Draw annotation icon .
Tap the color for the drawn annotation in the color panel .
Tap and drag to start a drawing. Free-form lines will appear indicating the drawing area . You can add multiple strokes to a drawn annotation.
Add Area Annotation
To leave an area annotation, tap and hold the icon menu arrow  and select the Area Annotation icon .
To change the annotation color, tap the Color icon .
Tap and drag the rectangle around an area of the submission . A box will display indicating the area for the annotation.
To undo or redo an annotation, tap the Undo or Redo icon .
To modify the annotation, deselect the annotation icon . Then tap the annotation in the document .
To view or edit a comment, tap the Comment icon . You can also use this icon to view and reply to any student comments made in DocViewer.
To delete a text annotation, tap the Delete icon .
To return to the submission, tap the Back icon .
Note: The Comment icon will not display when modifying Text annotations.