Printer defaults for PDF annotations in Swift for iOS

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//
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//  Copyright © 2021-2026 PSPDFKit GmbH. All rights reserved.
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//
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//  The Nutrient sample applications are licensed with a modified BSD license.
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//  Please see License for details. This notice may not be removed from this file.
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//
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import PSPDFKit
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import PSPDFKitUI
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class PrintDefaultsExample: Example {
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    var pdfController: PDFViewController!
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    override init() {
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        super.init()
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        title = "Customize the Printer Default Configuration"
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        contentDescription = "Shows how to configure the printer default settings to print the annotation summary."
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        category = .sharing
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        priority = 900
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    }
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    override func invoke(with delegate: ExampleRunnerDelegate) -> UIViewController {
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        let document = AssetLoader.document(for: .welcome)
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        pdfController = PDFViewController(document: document)
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        pdfController.printButtonItem.target = self
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        pdfController.printButtonItem.action = #selector(printDocument(_:))
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        pdfController.navigationItem.rightBarButtonItems = [pdfController.printButtonItem]
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        return pdfController
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    }
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    @objc func printDocument(_ sender: Any?) {
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        let customPrintConfiguration = DocumentSharingConfiguration.defaultConfiguration(forDestination: .print).configurationUpdated {
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            $0.pageSelectionOptions = [.annotated]
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            $0.annotationOptions = [.summary]
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        }
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        guard let document = pdfController.document else { return }
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        let sharingViewController = PDFDocumentSharingViewController(documents: [document], sharingConfigurations: [customPrintConfiguration])
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        sharingViewController.visiblePagesDataSource = pdfController
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        sharingViewController.present(from: pdfController, sender: sender)
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    }
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}