Marginalia

Import PDFs and notes, then summarize, ask, and extract useful structure from your own documents with Apple on-device intelligence.

Private LibraryAdd text-based PDFs, plain text, or Markdown notes to a local reading library stored on your device.

Document SummariesGenerate concise summaries and key takeaways from the content you choose to import.

Ask The DocumentAsk plain-language questions and receive answers grounded in relevant excerpts from the document.

Structured ExtractsPull key points, action items, outlines, and glossary entries into copyable, shareable text.

Field-Friendly ReviewSearch your local library, open the source text, copy AI output, and share useful notes when needed.

Local FirstNo account, no analytics SDK, and no developer server for your imported content or generated outputs.

Device Requirements

Marginalia uses Apple's on-device Foundation Models for AI features. If Apple Intelligence is not available or enabled on a device, importing and reading documents still work, and the app explains the requirement in-app.