Select All Text in a PDF using Swift for iOS

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//
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//  Copyright © 2021-2025 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 SelectAllTextExample: Example, PDFViewControllerDelegate {
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    override init() {
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        super.init()
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        title = "Select All Text"
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        contentDescription = "Shows how to add a “Select All” item to the menu."
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        category = .viewCustomization
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    }
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    override func invoke(with delegate: ExampleRunnerDelegate) -> UIViewController? {
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        PDFViewController(document: AssetLoader.document(for: .annualReport), delegate: self)
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    }
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    private func selectAllAction(for pageView: PDFPageView) -> UIAction? {
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        // Make sure there is selectable text on page.
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        guard let glyphs = pageView.presentationContext?.document?.textParserForPage(at: pageView.pageIndex)?.glyphs, !glyphs.isEmpty else {
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            return nil
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        }
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        // Make sure we haven't selected all text already.
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        guard pageView.selectionView.selectedGlyphs.count != glyphs.count else {
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            return nil
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        }
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        return UIAction(title: "Select All", image: UIImage(systemName: "a.square.fill")) { _ in
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            // We need to manually sort the glyphs.
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            pageView.select(glyphs: glyphs, animated: true)
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        }
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    }
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    func pdfViewController(_ sender: PDFViewController, menuForCreatingAnnotationAt point: CGPoint, onPageView pageView: PDFPageView, appearance: EditMenuAppearance, suggestedMenu: UIMenu) -> UIMenu {
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        if let action = selectAllAction(for: pageView) {
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            return suggestedMenu.prepend([action])
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        } else {
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            return suggestedMenu
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        }
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    }
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}