PdfDeveloperExtension

java.lang.Object
- com.aowagie.text.pdf.PdfDeveloperExtension

```
public class PdfDeveloperExtension
extends java.lang.Object
```
Beginning with BaseVersion 1.7, the extensions dictionary lets developers designate that a given document contains extensions to PDF. The presence of the extension dictionary in a document indicates that it may contain developer-specific PDF properties that extend a particular base version of the PDF specification. The extensions dictionary enables developers to identify their own extensions relative to a base version of PDF. Additionally, the convention identifies extension levels relative to that base version. The intent of this dictionary is to enable developers of PDF-producing applications to identify company-specific specifications (such as this one) that PDF-consuming applications use to interpret the extensions.

Since:

2.1.6

Field Summary

Fields
Modifier and Type	Field	Description
`private PdfName`	`baseversion`	The base version.
`private int`	`extensionLevel`	The extension level within the baseversion.
`private PdfName`	`prefix`	The prefix used in the Extensions dictionary added to the Catalog.

Constructor Summary

Constructors
Constructor	Description
`PdfDeveloperExtension(PdfName prefix, PdfName baseversion, int extensionLevel)`	Creates a PdfDeveloperExtension object.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`PdfName`	`getBaseversion()`	Gets the baseversion name.
`PdfDictionary`	`getDeveloperExtensions()`	Generations the developer extension dictionary corresponding with the prefix.
`int`	`getExtensionLevel()`	Gets the extension level within the baseversion.
`PdfName`	`getPrefix()`	Gets the prefix name.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - prefix
```
private final PdfName prefix
```
    The prefix used in the Extensions dictionary added to the Catalog.
  - baseversion
```
private final PdfName baseversion
```
    The base version.
  - extensionLevel
```
private final int extensionLevel
```
    The extension level within the baseversion.
- Constructor Detail
  - PdfDeveloperExtension
```
public PdfDeveloperExtension(PdfName prefix,
                             PdfName baseversion,
                             int extensionLevel)
```
    Creates a PdfDeveloperExtension object.
    
    Parameters:
    
    prefix - the prefix referring to the developer
    
    baseversion - the number of the base version
    
    extensionLevel - the extension level within the baseverion.
- Method Detail
  - getPrefix
```
public PdfName getPrefix()
```
    Gets the prefix name.
    
    Returns:
    
    a PdfName
  - getBaseversion
```
public PdfName getBaseversion()
```
    Gets the baseversion name.
    
    Returns:
    
    a PdfName
  - getExtensionLevel
```
public int getExtensionLevel()
```
    Gets the extension level within the baseversion.
    
    Returns:
    
    an integer
  - getDeveloperExtensions
```
public PdfDictionary getDeveloperExtensions()
```
    Generations the developer extension dictionary corresponding with the prefix.
    
    Returns:
    
    a PdfDictionary