Select all text in a PDF using Swift for iOS

1
//
2
//  Copyright © 2021-2025 PSPDFKit GmbH. All rights reserved.
3
//
4
//  The Nutrient sample applications are licensed with a modified BSD license.
5
//  Please see License for details. This notice may not be removed from this file.
6
//
7

8
import PSPDFKit
9
import PSPDFKitUI
10

11
class SelectAllTextExample: Example, PDFViewControllerDelegate {
12

13
    override init() {
14
        super.init()
15
        title = "Select All Text"
16
        contentDescription = "Shows how to add a “Select All” item to the menu."
17
        category = .viewCustomization
18
    }
19

20
    override func invoke(with delegate: ExampleRunnerDelegate) -> UIViewController? {
21
        PDFViewController(document: AssetLoader.document(for: .annualReport), delegate: self)
22
    }
23

24
    private func selectAllAction(for pageView: PDFPageView) -> UIAction? {
25
        // Make sure there is selectable text on page.
26
        guard let glyphs = pageView.presentationContext?.document?.textParserForPage(at: pageView.pageIndex)?.glyphs, !glyphs.isEmpty else {
27
            return nil
28
        }
29
        // Make sure we haven't selected all text already.
30
        guard pageView.selectionView.selectedGlyphs.count != glyphs.count else {
31
            return nil
32
        }
33
        return UIAction(title: "Select All", image: UIImage(systemName: "a.square.fill")) { _ in
34
            // We need to manually sort the glyphs.
35
            pageView.select(glyphs: glyphs, animated: true)
36
        }
37
    }
38

39
    func pdfViewController(_ sender: PDFViewController, menuForCreatingAnnotationAt point: CGPoint, onPageView pageView: PDFPageView, appearance: EditMenuAppearance, suggestedMenu: UIMenu) -> UIMenu {
40
        if let action = selectAllAction(for: pageView) {
41
            return suggestedMenu.prepend([action])
42
        } else {
43
            return suggestedMenu
44
        }
45
    }
46

47
}