---
title: maximumSize
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avassetimagegenerator/maximumsize
---

# maximumSize

The maximum size of images to generate.

## Declaration

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

## Mentioned in

Creating images from a video asset

## Discussion

Discussion The default value is zero, which generates images at the asset’s unscaled dimensions. Setting a size scales images to fit their defined bounding boxes. You define the aspect ratio of the scaled image by setting a value for the apertureMode property.

## See Also

### Configuring image generation

- [requestedTimeToleranceBefore](avfoundation/avassetimagegenerator/requestedtimetolerancebefore.md)
- [requestedTimeToleranceAfter](avfoundation/avassetimagegenerator/requestedtimetoleranceafter.md)
- [dynamicRangePolicy](avfoundation/avassetimagegenerator/dynamicrangepolicy-swift.property.md)
- [AVAssetImageGenerator.DynamicRangePolicy](avfoundation/avassetimagegenerator/dynamicrangepolicy-swift.struct.md)
- [appliesPreferredTrackTransform](avfoundation/avassetimagegenerator/appliespreferredtracktransform.md)
- [apertureMode](avfoundation/avassetimagegenerator/aperturemode-swift.property.md)
- [AVAssetImageGenerator.ApertureMode](avfoundation/avassetimagegenerator/aperturemode-swift.struct.md)