The Canvas Rich Content Editor is a powerful tool and will allow you to embed content from many sites, including Google Drive. This takes a couple of clicks, and you are done.

First, click on "File" from the main menu, then "Publish to the Web." This will open a window where you can publish your document and copy the embed code.

Once you have your embed code, you can copy it to Canvas in the Rich content editor. When you are editing any page, just look for the "HTML Editor" option in the top right of the page. Click that option and paste in your embed code. Click Save to see your embedded file.

NOTE: You may need to change the size of the embedded element to fit your screen size. This can be done by going to the Rich Content Editor and dragging the gray place-holder for your document to the appropriate size. OR, you can return to the HTML Editor and change the width from any number to "100%" and the height to 800 (or whatever works for you).

PRO TIP: If you are working on a large page in Canvas with lots of text and other elements, it can sometimes be tough to add your embedded file exactly where you want it to go. While you are in the traditional editing mode in the Rich Content Editor you can add a series of Xs in line (ex. xxxxxxxxxxxxxxxxxxx) then you can scroll until you see all of your Xs, highlight those, then replace them with your Google Embed code.

This is an embedded Google Doc ↓