---
title: "IptcDictionary..::.SupplementaryCategory Field"
canonical: https://www.graphicsmill.com/docs/gm5/F_Aurigma_GraphicsMill_Codecs_IptcDictionary_SupplementaryCategory.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/)

# IptcDictionary.SupplementaryCategory Field
 
The supplementary category for the image.
 
**Namespace:** [Aurigma.GraphicsMill.Codecs](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_Codecs.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Remarks
 To get more details about exact meaning of this field, refer [IPTC specification](http://www.iptc.org/std/IIM/4.1/specification/IIMV4.1.pdf).
   
## See Also

### Reference

- [IptcDictionary Class](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Codecs_IptcDictionary.htm.md)
- [Aurigma.GraphicsMill.Codecs Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_Codecs.htm.md)