About adobe pdf layers, Pdf layers. see layers – Adobe Acrobat 7 Professional User Manual
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About Adobe PDF layers
Acrobat supports the display, navigation, and printing of layered Adobe PDF content
output by applications such as Adobe InDesign, AutoCAD, and Visio.
You can rename and merge layers, change the properties of layers, and add actions to
layers. You can also lock layers to prevent them from being hidden.
You can control the display of layers using the default and initial state settings. For
example, if your document contains a copyright notice, you can easily hide the layer
whenever the document is displayed on-screen but ensure that the layer always prints.
Acrobat does not allow you to author layers that change visibility according to the zoom
level, but it does support this capability.
To direct users to a particular layer set to a custom view, you can add bookmarks to a PDF
document that contains layers. You can use this technique to highlight a portion of a layer
that is especially important. You can add links so that users can click a visible or invisible
link to navigate to or zoom in on a layer.
To create layers while exporting InDesign CS or later documents to PDF, make sure that
Compatibility is set to Acrobat 6 (PDF 1.5) and that Create Acrobat Layers is selected in
the Export PDF dialog box.