---
title: "printInteractionController(_:choosePaper:)"
framework: uikit
role: symbol
role_heading: Instance Method
path: "uikit/uiprintinteractioncontrollerdelegate/printinteractioncontroller(_:choosepaper:)"
---

# printInteractionController(_:choosePaper:)

Asks the delegate for an object that encapsulates the paper size and printing area for the print job.

## Declaration

```swift
optional func printInteractionController(_ printInteractionController: UIPrintInteractionController, choosePaper paperList: [UIPrintPaper]) -> UIPrintPaper
```

## Parameters

- `printInteractionController`: The shared instance of doc://com.apple.uikit/documentation/UIKit/UIPrintInteractionController that is managing the print job.
- `paperList`: An array of doc://com.apple.uikit/documentation/UIKit/UIPrintPaper objects that represent combinations of paper sizes and imageable areas supported by the selected printer.

## Return Value

Return Value A UIPrintPaper object representing both the paper size and imageable area (or printable rectangle) to use for the print job.

## Discussion

Discussion This method is intended for apps (typically document-based apps) that have a notion of distinct paper sizes. The delegate can examine the objects in paperList to locate the paper size and printable rectangle combination that is best suited for its needs and return the encapsulating UIPrintPaper object. Or it can call the bestPaper(forPageSize:withPapersFrom:) class method of the UIPrintPaper class, passing in a specific page size (typically the document size), and return the object returned by that method.

## See Also

### Related Documentation

- [printPaper](uikit/uiprintinteractioncontroller/printpaper.md)

### Choosing a Paper Size for the Print Job

- [printInteractionController(_:cutLengthFor:)](uikit/uiprintinteractioncontrollerdelegate/printinteractioncontroller(_:cutlengthfor:).md)
- [printInteractionController(_:chooseCutterBehavior:)](uikit/uiprintinteractioncontrollerdelegate/printinteractioncontroller(_:choosecutterbehavior:).md)