---
title: thumbnailSize
framework: pdfkit
role: symbol
role_heading: Instance Property
path: pdfkit/pdfthumbnailview/thumbnailsize
---

# thumbnailSize

Returns the maximum width and height of the thumbnails in the thumbnail view.

## Declaration

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

```swift
var thumbnailSize: NSSize { get set }
```

## Return Value

Return Value The maximum width and height of the thumbnails in the thumbnail view.