| Package | Description | 
|---|---|
| com.itextpdf.kernel.pdf.layer | 
| Modifier and Type | Field and Description | 
|---|---|
| protected PdfLayer | PdfLayer. parent | 
| Modifier and Type | Field and Description | 
|---|---|
| protected List<PdfLayer> | PdfLayer. children | 
| Modifier and Type | Method and Description | 
|---|---|
| static PdfLayer | PdfLayer. createTitle(String title, PdfDocument document)
             Creates a title layer. 
            | 
| protected static PdfLayer | PdfLayer. createTitleSilent(String title, PdfDocument document)
             Creates a title layer without registering it in PdfOCProperties. 
            | 
| PdfLayer | PdfLayer. getParent()
             Gets the parent of this layer, be it a title layer, or a usual one. 
            | 
| Modifier and Type | Method and Description | 
|---|---|
| List<PdfLayer> | PdfLayer. getChildren()
             Gets the list of the current child layers of the layer. 
            | 
| Collection<PdfLayer> | PdfLayerMembership. getLayers()
             Gets the collection of the layers this layer membership operates with. 
            | 
| List<PdfLayer> | PdfOCProperties. getLayers()
             Gets the list of all the layers currently registered in the OCProperties. 
            | 
| Modifier and Type | Method and Description | 
|---|---|
| void | PdfLayer. addChild(PdfLayer childLayer)
             Adds a child layer. 
            | 
| void | PdfLayerMembership. addLayer(PdfLayer layer)
             Adds a new layer to the current layer membership. 
            | 
| void | PdfVisibilityExpression. addOperand(PdfLayer layer)
             Adds a new operand to the current visibility expression. 
            | 
| protected void | PdfOCProperties. registerLayer(PdfLayer layer)
             This method registers a new layer in the OCProperties. 
            | 
| Modifier and Type | Method and Description | 
|---|---|
| void | PdfOCProperties. addOCGRadioGroup(List<PdfLayer> group)
             Use this method to set a collection of optional content groups whose states are intended to follow a "radio button" paradigm. 
            | 
| static void | PdfLayer. addOCGRadioGroup(PdfDocument document, List<PdfLayer> group)
             Use this method to set a collection of optional content groups whose states are intended to follow a "radio button" paradigm. 
            | 
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