Split the screen into two panes to compare different pages of a document side by side.
Edits are made in the main view. Split view is in view-only mode. Click a pane to make it active. Pages selected in the active pane will have a blue border against a light grey background. In the split view, scroll, select a different page or change the zoom level of the active pane without affecting the other pane. To select a different page in the split view, type in a number.
To adjust the size of the pane, hover over the dividing line between the views until you see the two-sided arrow, then click and drag the divider to the left or right.
To return to single-page view, choose Window > Split > Remove Split.