| Package | Description | 
|---|---|
| com.itextpdf.text | |
| com.itextpdf.text.pdf | 
| Modifier and Type | Field and Description | 
|---|---|
protected PdfOCG |  
          Image.layer 
           
             Optional Content layer to which we want this Image to belong. 
              |  
         
| Modifier and Type | Method and Description | 
|---|---|
PdfOCG |  
          Image.getLayer() 
           
             Gets the layer this image belongs to. 
              |  
         
| Modifier and Type | Method and Description | 
|---|---|
void |  
          Image.setLayer(PdfOCG layer) 
           
             Sets the layer this image belongs to. 
              |  
         
| Modifier and Type | Class and Description | 
|---|---|
class  |  
          PdfLayer 
           
             An optional content group is a dictionary representing a collection of graphics that can be made visible or invisible dynamically by users of viewer applications. 
              |  
         
class  |  
          PdfLayerMembership 
           
             Content typically belongs to a single optional content group, and is visible when the group is ON and invisible when it is OFF. 
              |  
         
| Modifier and Type | Field and Description | 
|---|---|
protected PdfOCG |  
          PdfTemplate.layer  |  
         
| Modifier and Type | Field and Description | 
|---|---|
protected LinkedHashSet<PdfOCG> |  
          PdfWriter.documentOCG 
           
             A hashSet containing all the PdfLayer objects. 
              |  
         
protected ArrayList<PdfOCG> |  
          PdfWriter.documentOCGorder 
           
             An array list used to define the order of an OCG tree. 
              |  
         
| Modifier and Type | Method and Description | 
|---|---|
PdfOCG |  
          PdfTemplate.getLayer() 
           
             Gets the layer this template belongs to. 
              |  
         
| Modifier and Type | Method and Description | 
|---|---|
void |  
          PdfContentByte.beginLayer(PdfOCG layer) 
           
             Begins a graphic block whose visibility is controlled by the   layer. 
            |  
         
void |  
          PdfTemplate.setLayer(PdfOCG layer) 
           
             Sets the layer this template belongs to. 
              |  
         
void |  
          PdfAnnotation.setLayer(PdfOCG layer) 
           
             Sets the layer this annotation belongs to. 
              |  
         
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