Preview
Click the Preview button on the top toolbar, or use the shortcut Alt + Ctrl + P (⌥ + ⌘ + P on macOS) to switch to Preview Mode.
Preview rendering
Preview Mode is read-only and shows how your document will look after export:
Viewport size
In the lower-left corner of the preview interface, you can set the viewport size. By default, it is set to Auto and adapts to the current window size. Change it as needed, for example, to simulate how an article appears on a phone.
Here is an example preview at a mobile screen size:
Open in Preview Mode by default
To open WonderPen in Preview Mode by default, enable this setting:
