---
title: "pageThumbnails(visibleParts:)"
framework: Assignables
role: symbol
role_heading: Instance Method
platforms: [iOS 17.4+, iPadOS 17.4+, Mac Catalyst 17.4+]
path: "assignables/mergeabledocument/pagethumbnails(visibleparts:)"
---

# pageThumbnails(visibleParts:)

Exports thumbnails of each page such that the thumbnails contain the indicated layers.

## Declaration

```swift
func pageThumbnails(visibleParts: [Self.PartID]) async -> [Self.Page.ID : Self.Page.Thumbnail]
```

## Parameters

- `visibleParts`: The lDs of layers that should be included in the thumbnail.