iOS PDF Editor App (Swift/PDFKit) — Acrobat-style features + on-device AI, no server

I need a native iOS app built — a full-featured PDF editor, free for end users, no server/backend required (everything runs on-device). Core features: View, annotate, highlight, and markup PDFs Add e-signatures (drawn or typed) Fill and create PDF forms Merge, split, and reorder pages Compress PDF file size OCR / scan-to-text (Apple's on-device Vision framework — no cloud API) Redact content Password protect / encrypt PDFs Export and share via iOS share sheet On-device AI (Apple Foundation Models, iOS 18+): summarize documents, answer questions about the PDF — must run locally, no cloud API, no per-request cost Requirements: Native Swift development using PDFKit Clean, App Store–ready UI (I can provide design direction if needed) No third-party cloud services or paid APIs — must work fully offline Experience with similar document/PDF apps (please share portfolio links) Deliverables: Fully functional, tested iOS app (iPhone + iPad) App submitted and passing App Store review (I own the Apple Developer account) Source code handover with clean documentation Budget: Fixed price preferred. Please quote based on the scope above. Milestones (proposed): Core viewer + annotation Forms + e-signatures OCR, merge/split, compress On-device AI features Polish, testing, App Store submission Please include: relevant past work, estimated timeline, and your fixed-price quote broken down by milestone.