How to Display Password Protected PDFs in an iOS Application
People can limit access to a PDF by encrypting PDFs with passwords. It’s an effective tool for us to protect our content. But what’s the original method to open a protected PDF file in an iOS application? That’s our topic today. Here, I will take ComPDFKit PDF SDK as an example. It provides developers with an simple method to open password-protected PDFs with Objective-C. I will show you how to open a password-protected PDF in an iOS application from the beginning: How to build an iOS application with ComPDFKit PDF SDK. Build an iOS Application to Display Password Protected PDFs Requirements ComPDFKit PDF SDK requires the latest stable version of Xcode available at the time the release was made. This is a hard requirement, as each version of Xcode is bundled with a specific version of the iOS Base SDK, which often defines how UIKit and various other frameworks behave. - iOS 10.0 or higher. - Xcode 12.0 or newer for Ob...