How to print document layers?

Acrobat 6 now supports document layers created in the AutoCAD and Microsoft Visio design programs. Those who create layered drawings in those programs can specify what layer content, such as watermarks or confidential information, must (or must not) be printed. They can then convert their documents to PDF, layers and all, to be viewed in Acrobat 6. If the resulting PDF file contains content that is not visible on the screen but should be printed (or vice versa), Acrobat 6 displays a warning message in the Print dialog box, as well as a preview of how the page will be printed. You can use commands on the Options menu at the top of the Layers navigation tab to determine what specific layer content you want to print. To open the Layers tab, choose View➪Navigation Tabs➪Layers or just click the Layers tab on the left side of the Navigation pane. To view a document exactly as it will print, choose Apply Print Overrides on the Options menu. This option prints all layer content in the document, even if it is not visible in the Acrobat document pane.
You can also change print overrides for specific layers. To do so, follow these steps:

1. Click the Layers tab in the Navigation pane to open the Layers palette and view the list of layers in the current PDF file.
2. Click a layer name in the Layers palette list to select a layer, and then choose Layer Properties on the Options menu at the top of the Navigation pane. Alternatively, you can right-click the layer and choose Properties on the context menu to open the Layer Properties dialog box.
3. Select the option you want from the Print drop-down list as follows:
• Select the Always Prints option to force the selected layer to print.
• Select the Never Prints option to force the selected layer to not print.
• Select the Prints When Visible option to force the layer to print only when it is visible in the document.
4. Click OK to close the Layer Properties dialog box.