# DocumentInfo.ThumbNail Class

Namespace: [PIX.Document](https://help.qlik.com/en-US/qlikview-developer/September2026/Subsystems/QMSAPIref/Content/PIX.Document.htm)  
Assembly: PIX.dll

## Inheritance

* System.Object
  * DocumentInfo.ThumbNail

## Syntax

```
public class ThumbNail : IXmlSerializable
```

## Constructors

| Name | Description |
| --- | --- |
| [ThumbNail(XmlReader)](https://help.qlik.com/en-US/qlikview-developer/September2026/Subsystems/QMSAPIref/Content/PIX.Document.DocumentInfo.ThumbNail.-ctor.htm#PIX_Document_DocumentInfo_ThumbNail__ctor_System_Xml_XmlReader_) |  |

## Methods

| Name | Description |
| --- | --- |
| [GetSchema()](https://help.qlik.com/en-US/qlikview-developer/September2026/Subsystems/QMSAPIref/Content/PIX.Document.DocumentInfo.ThumbNail.GetSchema.htm#PIX_Document_DocumentInfo_ThumbNail_GetSchema) |  |
| [ReadXml(XmlReader)](https://help.qlik.com/en-US/qlikview-developer/September2026/Subsystems/QMSAPIref/Content/PIX.Document.DocumentInfo.ThumbNail.ReadXml.htm#PIX_Document_DocumentInfo_ThumbNail_ReadXml_System_Xml_XmlReader_) |  |
| [WriteXml(XmlWriter)](https://help.qlik.com/en-US/qlikview-developer/September2026/Subsystems/QMSAPIref/Content/PIX.Document.DocumentInfo.ThumbNail.WriteXml.htm#PIX_Document_DocumentInfo_ThumbNail_WriteXml_System_Xml_XmlWriter_) |  |

### Extension Methods

[ApiFilter.FilterFor<T>(T, Nullable<ApiVersion>)](https://help.qlik.com/en-US/qlikview-developer/September2026/Subsystems/QMSAPIref/Content/PIX.ApiFiltering.ApiFilter.FilterFor.htm#PIX_ApiFiltering_ApiFilter_FilterFor__1___0_System_Nullable_PIX_ApiVersion__)