paperkit

You can integrate PencilKit drawing by embedding PaperMarkupViewController, which hosts freeform drawing alongside structured markup elements like shapes, text boxes, and images. It provides a unified editor without building custom views from scratch.

The best way to persist PencilKit drawings is using the PaperMarkup async dataRepresentation model. It supports content-version checks, merging PKDrawing objects, and safe forward-compatibility handling to ensure your annotation data saves and loads reliably.

Yes, you can use this markup framework to render thumbnails for document previews. The PaperMarkupViewController integration explicitly supports saving thumbnail previews alongside standard document annotation and saving flows.

Yes, the annotation framework supports SwiftUI, macOS, iPadOS, Mac Catalyst, and visionOS. It includes SwiftUI wrappers for multi-platform apps and platform-specific insertion controllers like MarkupEditViewController and MarkupToolbarViewController.

You can restrict drawing tools and features by applying custom FeatureSet configuration presets. This allows you to configure PKToolPicker integration and limit the available markup elements within your PaperMarkupViewController editor interface.

You can migrate existing PencilKit drawings by merging your PKDrawing objects into the PaperMarkup data model. The framework handles this migration through its content-version checks and async dataRepresentation persistence for forward compatibility.