When viewing a document layers can be toggled on and off to create different views.
How to Show/Hide Layers in a PDF
- Access the layers pane by clicking the Layers button on the left side of the screen.
- Show or hide layers by clicking the check box next to the layers name
- Continue working on the document as you normally would
Note: Toggling the layers on and off does not modify the document and will not be saved. To change the default state when opening the PDF see Layer Properties