Belongs to
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Category: Layers
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Type: Changes
What it does
Allows you to perform a number of fixes to the layers in a PDF.
Options:
- Remove alternate layer configurations, only keep default configuration
- Add missing layer configuration names (e.g. "config_1", "config_2", ...)
- Make layer configuration names unique
- Remove order from layer configuration if layers are missing
- Remove AS (AutoState) entry from layer configurations. (AutoState entries are application
specific usage entries).
Note: Layer configuration refers to the Layers panel.
About PDF layers
Layered content usually comes from applications such as InDesign, AutoCAD or Visio. When
converted to PDF, the layers are retained and can be viewed and navigated in Adobe Acrobat.
However, if you print a PDF file that contains layers, only the content that is visible
on-screen is printed. This may or may not be desired.
"Conventional" layers versus PDF layers
Layers in digital image editing ("conventional" layers) are used to separate the
different elements of an image. Each element is drawn on exactly one layer. The different layers
are stacked on top of each other, and the order of the layers defines how the image looks
like.
Layers in PDF have a different meaning. They are used to hide or show page content:
- Turning on a layer, all objects on this layer are shown on-screen.
- Turning off a layer, all objects on this layer are hidden, i.e. they become
invisible.
As such, layers are also called "optional content groups": groups of objects that can be
selectively viewed or hidden by the author of the document. Objects can belong to different
layers, and the order of the layers is of no importance.
To work with layers in a PDF document in Adobe Acrobat, select .
For more information, refer to the Adobe Acrobat help.