how do i embed an image in a document?
I'm not quite sure what you mean by "document" as that isn't a built-in type inside Canvas. I'm going to answer the question like you meant a content page, assignment, discussion, quiz, or any other location where you have the Rich Content Editor available to you.
There are several ways that you can embed an image, but they involve starting with the Embed Image button in the editor.
From there, you can paste a link to a file on the web, find an image on Flickr, or use Canvas. If you choose the Canvas route, you can upload a new file (you have to choose a folder first) or choose a file that you have already uploaded.
Here are some lessons in the Canvas Instructor Guide that may help.
Retrieving data ...