A artwork can be viewed in either Preview mode (where you see all strokes, fills, effects, etc) or Outline mode (where you see just vector paths). Keyboard shortcut for toggling between modes, Command+Y (Mac) or Ctrl+Y (Windows).
- To view artwork in Preview mode and Outline mode simultaneously, view the artwork in Outline mode and open the Navigator panel, where artwork is always shown in Preview mode.
- To view all artwork in a layer as outlines, Ctrl‑click (Windows) or Command-click (Mac) the eye icon for the layer in the Layers panel. Ctrl‑click (Windows) or Command-click (macOS) again to return to previewing artwork in color. The eye icon has a hollow center when Outline view is enabled and a filled center when Preview view is enabled.
- To view all items in unselected layers as outlines, Alt+Ctrl‑click (Windows) or Option+Command-click (Mac) the eye icon for the selected layer. Alternatively, select Outline Others from the Layers panel menu.