---
title: thumbnailContentType
framework: TelephonyMessagingKit
role: symbol
role_heading: Instance Property
platforms: [iOS 26.0+]
path: telephonymessagingkit/rcsservice/fileuploadrequest/thumbnailcontenttype
---

# thumbnailContentType

The content type of the thumbnail.

## Declaration

```swift
var thumbnailContentType: UTType?
```

## Discussion

Discussion If you don’t set this property, the framework infers a content type from the URL.

## See Also

### Accessing upload request properties

- [cellularServiceID](telephonymessagingkit/rcsservice/fileuploadrequest/cellularserviceid.md)
- [fileURL](telephonymessagingkit/rcsservice/fileuploadrequest/fileurl.md)
- [contentType](telephonymessagingkit/rcsservice/fileuploadrequest/contenttype.md)
- [thumbnailURL](telephonymessagingkit/rcsservice/fileuploadrequest/thumbnailurl.md)