---
title: preferredThumbnailSize
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uiimagereader-swift.struct/configuration-swift.struct/preferredthumbnailsize
---

# preferredThumbnailSize

The thumbnail size in pixels that the image reader makes the image.

## Declaration

```swift
var preferredThumbnailSize: CGSize { get set }
```

## Discussion

Discussion The default value is CGSizeZero.

## See Also

### Configuration properties

- [prefersHighDynamicRange](uikit/uiimagereader-swift.struct/configuration-swift.struct/prefershighdynamicrange.md)
- [preparesImagesForDisplay](uikit/uiimagereader-swift.struct/configuration-swift.struct/preparesimagesfordisplay.md)
- [pixelsPerInch](uikit/uiimagereader-swift.struct/configuration-swift.struct/pixelsperinch.md)