Showing a PDF in SwiftUI

Since iOS 11, Apple has provided PDFKit, a robust framework to display and manipulate PDF documents in your applications.

As you can imagine, PDFKit is based on UIKit; however, in this recipe, we'll see how easy it is to integrate it with SwiftUI.

Getting ready

Let's create a new SwiftUI app in Xcode called PDFReaderApp.

We then need a PDF document to present. We are providing an example in the repo https://github.com/PacktPublishing/SwiftUI-Cookbook/blob/master/Resources/Chapter13/recipe4/PDFBook.pdf, but feel free to use a PDF document of your choice.

Copy the document in the project:

Fig. 13.25 – PDF document in the Xcode project

With the PDF document in the project, we are ready to implement our PDF viewer in SwiftUI.

How to do it

PDFKit provides a class called PDFView to render a PDF document.

Because the PDFView class is a subclass of UIView, it must be encapsulated in a UIViewRepresentable...