Link Annotation View Customization in Swift for iOS
Enforce a fixed style for link annotations. Get additional resources by visiting our PSPDFLinkAnnotationView API guide.
//// Copyright © 2018-2025 PSPDFKit GmbH. All rights reserved.//// The Nutrient sample applications are licensed with a modified BSD license.// Please see License for details. This notice may not be removed from this file.//
import PSPDFKitimport PSPDFKitUI
class LinkCustomizationExample: Example {
override init() { super.init()
title = "Link annotation view customization" contentDescription = "Shows how to enforce a fixed style for link annotations." category = .viewCustomization }
override func invoke(with delegate: ExampleRunnerDelegate) -> UIViewController { let document = AssetLoader.document(for: AssetName.welcome) let controller = PDFViewController(document: document) { $0.overrideClass(LinkAnnotationView.self, with: AlwaysVisibleLinkAnnotationView.self) } return controller }
/// Always shows a 1pt red border around link annotations. class AlwaysVisibleLinkAnnotationView: LinkAnnotationView {
let fixedBorderColor = UIColor.red let fixedStrokeWidth: CGFloat = 1
// Override properties to enforce the hardcoded style and ignore // any values that would have otherwise been obtained from the // link annotation.
override var borderColor: UIColor? { get { fixedBorderColor } set {} }
override var strokeWidth: CGFloat { get { return fixedStrokeWidth } set {} } }}
This code sample is an example that illustrates how to use our SDK. Please adapt it to your specific use case.