---
title: "TiffExtraChannel Class"
canonical: https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Codecs_TiffExtraChannel.htm
product: "Graphics Mill 5.5 for .NET"
---

This documentation is for the old version. [Go to the latest Graphics Mill docs](https://www.graphicsmill.com/docs/gm/)

# TiffExtraChannel Class
 
This class represents the TIFF extra channel.
 
**Namespace:** [Aurigma.GraphicsMill.Codecs](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_Codecs.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```
Public Class TiffExtraChannel
```
 
```csharp
public class TiffExtraChannel
```
 
## Remarks
 One of the most important features of the TIFF image format is the extra channels support. Extra channels are typically used to specify non-color information (such as image opacity), highlight some image area, or apply additional inks (such as gold, silver, etc.) in printing solutions.
 
## Inheritance Hierarchy
  
- [System.Object](http://msdn2.microsoft.com/en-us/e5kfa45b)
    - Aurigma.GraphicsMill.Codecs.TiffExtraChannel
   
## See Also

### Reference

- [TiffExtraChannel Members](https://www.graphicsmill.com/docs/gm5/AllMembers_T_Aurigma_GraphicsMill_Codecs_TiffExtraChannel.htm.md)
- [Aurigma.GraphicsMill.Codecs Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_Codecs.htm.md)

### Manual

- [Working with TIFF Extra Channels](https://www.graphicsmill.com/docs/gm5/WorkingwithTIFFExtraChannels.htm.md)