---
title: metadata
summary: null
url: https://www.fastly.com/documentation/reference/io/metadata
---

By default, the image optimizer will remove all metadata embedded in an image. The `metadata` parameter allows this behavior to be configured.

## Syntax

```text
metadata={value}
```

## Allowed values

| Value            | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| ---------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `copyright`      | Preserve [copyright notice](https://www.iptc.org/std/photometadata/specification/IPTC-PhotoMetadata#copyright-notice), [creator](https://www.iptc.org/std/photometadata/specification/IPTC-PhotoMetadata#creator), [credit line](https://www.iptc.org/std/photometadata/specification/IPTC-PhotoMetadata#credit-line), [licensor](https://www.iptc.org/std/photometadata/specification/IPTC-PhotoMetadata#licensor), and [web statement of rights](https://www.iptc.org/std/photometadata/specification/IPTC-PhotoMetadata#web-statement-of-rights) fields. |
| `c2pa`           | Preserve the [C2PA manifest](https://c2pa.org) and add any transformations performed by Fastly Image Optimizer.                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| `copyright,c2pa` | Apply both `c2pa` and `copyright` metadata filters.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |

## Notes

1. These parameters are only effective when the source and destination format are both `jpeg`.
2. To allow C2PA manifests users must [contact support](https://support.fastly.com)  to enable this functionally.