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## com.lowagie.text.pdf
Class PdfNull

    java.lang.Object
      com.lowagie.text.pdf.PdfObject
          com.lowagie.text.pdf.PdfNull

    public class PdfNull

extends PdfObject

`PdfNull` is the Null object represented by the keyword null.

This object is described in the 'Portable Document Format Reference Manual version 1.7' section 3.2.8 (page 63).

See Also:
  `PdfObject`

Field Summary
`private static String` | `CONTENT` This is the content of a `PdfNull`-object.
`static PdfNull` | `PDFNULL` This is an instance of the `PdfNull`-object.

Fields inherited from class com.lowagie.text.pdf.PdfObject
`ARRAY, BOOLEAN, bytes, DICTIONARY, INDIRECT, indRef, NAME, NOTHING, NULL, NUMBER, STREAM, STRING, TEXT_PDFDOCENCODING, TEXT_UNICODE, type`

Constructor Summary
`PdfNull()` Constructs a `PdfNull`-object.

Method Summary
`String` | `toString()` Returns the `String`-representation of this `PdfObject`.

Methods inherited from class com.lowagie.text.pdf.PdfObject
`canBeInObjStm, getBytes, getIndRef, isArray, isBoolean, isDictionary, isIndirect, isName, isNull, isNumber, isStream, isString, length, setContent, setIndRef, toPdf, type`

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

Field Detail

### PDFNULL

    public static final PdfNull PDFNULL

  This is an instance of the `PdfNull`-object.

### CONTENT

    private static final String CONTENT

  This is the content of a `PdfNull`-object.

  See Also:
    Constant Field Values

Constructor Detail

### PdfNull

    public PdfNull()

  Constructs a `PdfNull`-object.

  You never need to do this yourself, you can always use the static final object PDFNULL.

Method Detail

### toString

    public String toString()

  Description copied from class: `PdfObject`
  Returns the `String`-representation of this `PdfObject`.

  Overrides:
    `toString` in class `PdfObject`
  Returns:
    a `String`

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