Where's the Edit Toolbar Button in Preview Application I can't find the Edit Button to toggle the Edit Toolbar in the Preview Application

Here's a screencap of a file that's open in editor:



On the support page Mac Basics: Preview app views and edits images and PDFs, there's an edit button like in the following picture:



However, I don't see that option anywhere.
It seems that was just an outdated version of preview.  In the new version the button is called Markup and is in the same location.