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2021

Illustration: Creating and Filling Forms Programmatically in Swift TUTORIALS  |  iOS • Development • How To • PDF • Swift Creating and Filling Forms Programmatically in Swift This blog post explains the process of creating and filling PDF forms programmatically in Swift.
Illustration: Streams of Cocoa: Why It's Still Worth Knowing NSStream DEVELOPMENT  |  Development • iOS • Swift Streams of Cocoa: Why It's Still Worth Knowing NSStream In this post, we'll look at a piece of API that many people rarely touch, if ever: Stream. It’s neither new nor shiny, but it's a powerful tool when you know how to use it.
Illustration: How to Unlock PDF Functionality with OCR in iOS DEVELOPMENT  |  iOS • Development • How To • Swift How to Unlock PDF Functionality with OCR in iOS This blog post covers how to integrate OCR functionality in iOS, perform OCR, and leverage functionality such as extraction, selection, highlight, and search.

2020

Illustration: Convert a PDF to an Image in Swift TUTORIALS  |  iOS • Development • How To • PDF • Swift Convert a PDF to an Image in Swift This blog post explains how to convert your PDF file to an image using Core Graphics, PDFKit, and PSPDFKit.
Illustration: Caching File Downloads with URLCache in Swift TUTORIALS  |  iOS • Development • Swift Caching File Downloads with URLCache in Swift Apple has a sophisticated caching system in iOS, which is enabled by default. However, documentation around URLCache is quite sparse. Today, we'll look at the behavior of caching when dealing with large files.
Illustration: Extending the Scribble User Experience TUTORIALS  |  iOS • Development • How To • Swift Extending the Scribble User Experience How to customize the default Scribble experience to allow users to start writing anywhere.
Illustration: Adding Multimedia Content to a PDF as a Gallery TUTORIALS  |  iOS • Development • How To • Swift Adding Multimedia Content to a PDF as a Gallery This post is about the Gallery API in PSPDFKit for iOS that can be used to add interactive multimedia content to a PDF.
Illustration: Using Metal to Apply Image Filters DEVELOPMENT  |  iOS • Development • Swift Using Metal to Apply Image Filters An overview of how to use Metal to apply filters to images to perform a simple color inversion on the input image.
Illustration: The Case for Lists in UICollectionView DEVELOPMENT  |  iOS • Development • Swift The Case for Lists in UICollectionView Exploring the power and flexibility offered by creating lists using UICollectionView.
Illustration: The Hidden Trap in Selective Table View and Collection View Reloads DEVELOPMENT  |  iOS • Development • Swift The Hidden Trap in Selective Table View and Collection View Reloads Learn how to properly update cells in a table view or collection view without crashing.
Illustration: Automatically Redact Faces with PSPDFKit for iOS TUTORIALS  |  Development • iOS • Redaction • How To • Swift Automatically Redact Faces with PSPDFKit for iOS This post describes how to use PSPDFKit for iOS and Core Image to perform facial redaction in PDF documents.
Illustration: Level Up Your Trackpad Support Using UIInteraction TUTORIALS  |  iOS • Development • Swift Level Up Your Trackpad Support Using UIInteraction How to make your iOS app work well with scrolling, secondary clicking and dragging on a trackpad or mouse.
Illustration: An In-Depth Look at Blur Effect Materials on iOS TUTORIALS  |  iOS • Development • Swift An In-Depth Look at Blur Effect Materials on iOS This blog post talks in detail about the blur effect materials on iOS and the challenges we faced in picking the appropriate effect for our SDK.
Illustration: Introduction to SwiftUI for React Developers (Part 2) TUTORIALS  |  iOS • Web • Development • How To • Swift • React Introduction to SwiftUI for React Developers (Part 2) A discussion about the basic concepts of SwiftUI from the point of view of a React developer
Illustration: Introduction to SwiftUI for React Developers (Part 1) TUTORIALS  |  iOS • Web • Development • How To • Swift • React Introduction to SwiftUI for React Developers (Part 1) A discussion of the basic concepts of SwiftUI from the point of view of a React developer.
Illustration: Adopting UIAppearance in Custom Views TUTORIALS  |  iOS • Development • Swift • Objective-C Adopting UIAppearance in Custom Views Learn how to support styling your own custom views using UIAppearance.

2019

Illustration: Introduction to C++ for Swift Developers BLOG  |  Development • C++ • Swift Introduction to C++ for Swift Developers An introduction to the C++ language for Swift developers, with an overview of reasons to use C++ and a look at differences and similarities between the languages.
Illustration: Adopting Dark Mode on iOS and Ensuring Backward Compatibility BLOG  |  iOS • Development • Swift Adopting Dark Mode on iOS and Ensuring Backward Compatibility A comprehensive overview of adopting Dark Mode in an iOS app, along with a few tips to make the process of development easier.
Illustration: Customizing Segmented Controls in PSPDFKit BLOG  |  iOS • Development • How To • Objective-C • Swift Customizing Segmented Controls in PSPDFKit We show how to customize the segmented controls in the document info coordinator.
Illustration: Making a Resource Thread-Safe with Locks BLOG  |  iOS • Development • Swift Making a Resource Thread-Safe with Locks We discuss how to ensure thread safety and synchronization via locking.
Illustration: Strategies for Saving and Syncing Annotations Using External Files BLOG  |  iOS • Development • Swift • Annotations • Instant • JSON • XFDF Strategies for Saving and Syncing Annotations Using External Files We discuss the different strategies for saving and syncing annotations in external files on iOS.
Illustration: Inserting an Image into a PDF with Swift BLOG  |  iOS • Development • How To • Swift Inserting an Image into a PDF with Swift We provide a step-by-step explanation of how to insert an image into a PDF using Swift.
Illustration: Is My Document a Valid PDF? BLOG  |  iOS • Swift • Objective-C • PDF • Development Is My Document a Valid PDF? This article looks at multiple factors used to determine the validity of a PDF.
Illustration: Swizzling in Swift BLOG  |  iOS • Development • Swift Swizzling in Swift A quick crash course on how to swizzle correctly, and how to do it in Swift 5.1
Illustration: Working with PDF Metadata in Swift BLOG  |  iOS • Development • Products • Swift Working with PDF Metadata in Swift How and what metadata can be stored in a PDF, and how to programmatically work with this information.
Illustration: Drawing on PDFs Using Ink Annotations BLOG  |  iOS • Development • How To • Swift Drawing on PDFs Using Ink Annotations We show how to draw on a PDF using an ink annotation in PDFKit.
Illustration: How to Show a PDF in SwiftUI BLOG  |  iOS • Development • How To • Swift • PDF How to Show a PDF in SwiftUI How to show a PDF using SwiftUI, Apple's PDFKit, and PSPDFKit for iOS.
Illustration: Merge PDFs in Swift BLOG  |  iOS • Development • How To • PDF • Swift Merge PDFs in Swift How to merge multiple PDF files in Swift.
Illustration: PDF Text Extraction in Swift BLOG  |  iOS • Development • How To • Swift PDF Text Extraction in Swift We demonstrate how to extract text from a PDF using Swift via PDFKit.
Illustration: Extracting Images from a PDF in Swift BLOG  |  iOS • Development • How To • Swift Extracting Images from a PDF in Swift How to extract images from a PDF with Swift.
Illustration: Annotate PDFs with Images via PDFKit BLOG  |  iOS • Development • How To • Swift Annotate PDFs with Images via PDFKit We show you how to annotate a PDF with an image via PDFKit.
Illustration: Converting an Image to a PDF in Swift BLOG  |  iOS • Development • How To • Swift Converting an Image to a PDF in Swift We provide a step-by-step explanation of how to convert an image to a PDF.
Illustration: How to Convert HTML to PDF with Swift BLOG  |  iOS • Development • How To • Swift How to Convert HTML to PDF with Swift A tutorial about how to convert simple HTML to PDF using Swift.
Illustration: Creating a PDF in Swift Using PDFKit BLOG  |  iOS • Development • How To • Swift Creating a PDF in Swift Using PDFKit We show you how to customize a PDF in Swift using PDFKit.

2018

Illustration: Search and Redact Text in Swift BLOG  |  iOS • Development • How To • Swift Search and Redact Text in Swift How to search and redact text using Swift and PSPDFKit for iOS.
Illustration: Tips and Tricks for Contributing to the Swift Language BLOG  |  Development • Swift • iOS • C++ Tips and Tricks for Contributing to the Swift Language This post describes the process for contributing code to the Swift programming language, including how to propose changes to the language, write a pull request, address feedback, and make your code part of the next version of the language.
Illustration: First-Class Swift API for Objective-C Frameworks BLOG  |  Development • iOS • Swift • Tips First-Class Swift API for Objective-C Frameworks Objective-C and Swift interoperability with PSPDFKitSwift