Adobe ACROBAT 3D Manual page 492

Navigating with layers
Information can be stored on different layers of a PDF document. The layers that appear
in the PDF document are based on the layers created in the original application. You
cannot create layers in Acrobat; however, you can examine layers and show or hide the
content associated with each layer using the Layers tab in the navigation pane. Items on
locked layers cannot be hidden.
Note: A Lock icon in the Layers tab indicates that a layer is for information only. Locked
layers can be created from AutoCAD and Visio files. Use the Layer Properties dialog box
to change the visibility of a locked layer.
Layers tab A. Eye icon indicates a displayed layer. B. Locked layer C. Hidden layer
To view or hide layers:
1. Do one of the following:
To hide a layer, click the eye icon
layer is visible when the eye icon is present, and hidden when the eye icon is absent. This
setting temporarily overrides the settings in the Layer Properties dialog box.)
To show or hide multiple layers, choose an option from the Options menu in the Layers
tab. (Apply Layer Overrides affects all optional content in the PDF document, even layers
that are not listed in the Layers tab. All layers are visible, regardless of the settings in the
Layers Properties dialog box. You cannot change layer visibility using the eye icon until
you toggle this command off. You can edit layer properties in the Layer Properties dialog
box, but changes, except changes to the layer name, are not effective until you choose
Reset To Initial Visibility in the Options menu.)
2. From the Options menu in the Layers tab, do any of the following:
Choose List Layers For All pages to show every layer across every page of the document.
Choose List Layers For Current Page to show layers only on the currently visible page.
Choose Reset To Initial Visibility to reset layers to their default state.
Choose Apply Layer Overrides to display all layers. This option affects all optional
content in the PDF document, even layers that are not listed in the Layers tab. All layers
are visible, regardless of the settings in the Layers Properties dialog box. You cannot
change layer visibility using the eye icon until you toggle this command off. You can edit
layer properties in the Layer Properties dialog box, but changes (except changes to the
layer name) are not effective until you choose Reset To Initial Visibility in the Options
menu.
Note: You cannot save the view of a layered PDF file that you create by using the eye
icon in the Layers tab to show and hide layers. When you save the file, the visibility of the
layers automatically reverts to the initial visibility state. If you want to save a different
view of a layered PDF file, you must change the default state of the layers in the Layer
Properties dialog box.
. To show a hidden layer, click the empty box. (A