Google Drawings Instructions
Using the Editing Tools
Make a copy of an existing or start a new Google Drawing. You can use the editing tools to add lines, shapes, text boxes and images.
For instructions on using Google Drawing tools, see Google’s “Learn how to use drawings & markups” page.
Export Your Drawing for Canvas File Upload
Once you are finished with a drawing, click File and then Download and select .PNG. Give your drawing a name then upload your exported .PNG back into the Canvas as a file upload.