# SignatureImage.ExportFilterIndex Property

> Gets or sets the format used if the image is saved. This is the number of the filter in the string returned through the ImageCollection.ExportFilters property, beginning with number one. If the ImageCollection.ExportFilters property is used to initialize the FileDialog.Filter property of a Framework dialog, the FileDialog.FilterIndex property can be used as value for this property. A value of zero indicates that no export format has currently be specified for the image. In this case the original format is used that can be obtained with the SignatureImage.FilterIndex property.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Property
- **Introduced:** 31.0
- **Namespace:** `TXTextControl`
- **Package:** `TXTextControl.TextControl.Core.SDK` (assembly `TXTextControl.Core.dll`, from the private NuGet feed or Text Control Offline Packages)
- **Package:** `TXTextControl.TextControl.ASP.SDK` (assembly `TXTextControl.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXTextControl.dll` from the setup
- **Path:** TX Text Control .NET Server > Reference > TXTextControl > SignatureImage.ExportFilterIndex Property
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/signatureimage/exportfilterindex-property/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/signatureimage/exportfilterindex-property/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/signatureimage/exportfilterindex-property/llms-full.txt

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## On This Page

- [Description](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/signatureimage/exportfilterindex-property/#description)
- [Syntax](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/signatureimage/exportfilterindex-property/#syntax)
- [Members](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/signatureimage/exportfilterindex-property/#members)
- [Examples](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/signatureimage/exportfilterindex-property/#examples)

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## Nearby

- **Previous:** [SignatureImage.ExportFileName Property](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/signatureimage/exportfilename-property/llms.txt)
- **Next:** [SignatureImage.ExportMaxResolution Property](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/txtextcontrol/signatureimage/exportmaxresolution-property/llms.txt)