However, it stores color you set, so you don’t have to reset it every time when calling pdfView.document =. backgroundColor Interface Building setting. I have to mention that PDFThumbnailView, like PDFView, doesn’t respect the. Go to the Inspector panel (on the right side), select Identity tab and enter the class name PDFView.Ĭreate to your ViewController’s class using Interface BuilderĮnter fullscreen mode Exit fullscreen mode.Setup constraints (I’m going to leave some space on the left for thumbnails view).To add a PDFView to your ViewController’s view Personally, I prefer Storyboard to quickly build an example project. To add one to your ViewController’s view, you could use either Storyboard or in-code initialization. It’s a subclass of UIView, and its main purpose is to display a PDF Document. Note: In this tutorial, I’m going to build an iPad app, but PDFKit also works for iPhone. Looks easy, doesn’t it? We don’t need to teach you how to use Alamofire for downloading and uploading files - we’ll go straight to PDFKit. Save a PDF document and upload it to the server.Add ink annotations to a PDF with the user’s finger or an Apple pencil.View a PDF document and allow the user to navigate between pages.However, there were no major changes in PDFKit framework since iOS 13. This tutorial was updated to iOS 15, you’ll also find some useful information about PencilKit, PKCanvasView and PKToolPicker introduced with iOS 13 in the second part, as well as how to add text annotations. We also found a few bugs, which lead to crashes (inside the Framework), and lack of documentation and tutorials or examples. However, I’d spent a lot of time making drawings, touches, and annotations work as expected. It actually seems to be "magical" framework to solve our task in just a few lines of code. It includes views for PDF documents and thumbnails with built-in gestures support and lot of animations. Of course, we understood it wouldn’t be an easy task, but we never imagined quite how challenging it would be.Īt first sight, PDFKit looks like any other Apple’s framework included in iOS SDK. The key feature of this viewer was the ability to add annotations to a PDF file with a finger or Apple Pencil. My team recently started a new project: to develop a new iOS app with a built-in PDF Viewer. The third article is about creating PDF document on devices, and inserting and removing pages.The second is about PencilKit, Text annotations and auto-saving.We’ll start with PDFKit basics and will create first Ink annotations in the end of this tutorial. I know that sounds like a lot of work, but the total amount of code isn’t so bad.This is my first article about Apple’s PDFKit. Once that finishes the PDF URL is yours to do with as you please. Ending the page and closing the PDF document.Rendering the SwiftUI views onto that page.Create a CGContext object to handle the PDF pages.This might be a fixed size like A4 or US Letter, or might be the size of the view hierarchy you’re rendering. Telling SwiftUI how big you want the PDF to be.Calling render() on the image renderer to start your rendering code.Creating a URL where SwiftUI can write the image data.Deciding which views you want to render.SwiftUI’s ImageRenderer class can render views any SwiftUI views to PDFs, and yes: all the text and shapes remain vectors, so they scale up beautifully.Ĭreating a PDF with ImageRenderer takes eight steps:
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