App Transport Security

Instant must connect to your PSPDFKit Server to synchronize documents. You should use a secure https serverURL when creating the PSPDFInstantClient and ensure the server meets Apple’s App Transport Security requirements. If this is not possible, ensure the appropriate ATS exceptions are set in the app's Info.plist.

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The PSPDFKit SDK is a framework that allows you to view, annotate, sign, and fill PDF forms on iOS, Android, Windows, macOS, and Web. PSPDFKit Instant adds real-time collaboration features to seamlessly share, edit, and annotate PDF documents.