# PdfNull class

> The PDF null object. PdfNull class, PdfNetStack.Objects namespace.

Namespace: [PdfNetStack.Objects](https://www.jadev-corp.com/api/pdfnetstack-objects/)  
Assembly: PdfNetStack.dll  
Package: `PdfNetStack`

The PDF null object.

```csharp
public sealed class PdfNull : PdfObject
```

**Inheritance**

[object](https://learn.microsoft.com/dotnet/api/system.object) ← 
[PdfObject](https://www.jadev-corp.com/api/pdfnetstack-objects/pdfobject/) ← 
[PdfNull](https://www.jadev-corp.com/api/pdfnetstack-objects/pdfnull/)

## Fields

### <a id="PdfNetStack_Objects_PdfNull_Instance"></a> Instance

The only instance.

```csharp
public static readonly PdfNull Instance
```

#### Field Value

 [PdfNull](https://www.jadev-corp.com/api/pdfnetstack-objects/pdfnull/)

## Methods

### <a id="PdfNetStack_Objects_PdfNull_ToString"></a> ToString\(\)

Returns a string that represents the current object.

```csharp
public override string ToString()
```

#### Returns

 [string](https://learn.microsoft.com/dotnet/api/system.string)

A string that represents the current object.

## Used in

- [Low level PDF objects in C#](https://www.jadev-corp.com/guides/low-level-objects/)

Source: https://www.jadev-corp.com/pdfnetstack/api/pdfnetstack-objects/pdfnull/