PDF Flow: Edit & Scan

Your PDFs never leave your iPhone. Pay once. PDF Flow is a complete, on-device PDF toolkit. Merge, split, compress, annotate, sign, and OCR your documents entirely on your device — no cloud upload, no account, no analytics, ever. The files you work on stay in your own Files and iCloud Drive; PDF Flow has no backend to send them to. WHY PDF FLOW • 100% on-device. Every operation runs through Apple's PDFKit and Vision frameworks, locally. There is no server, no upload endpoint, and no third-party SDK. • Pay once, own forever. A single $19.99 lifetime unlock — no recurring bill required. Monthly and yearly options are available if you prefer, but the lifetime price is the headline. • No watermark on your output. The free tier is genuinely usable: view, annotate, and sign every day, plus three merges, three splits, and three compresses per day. Your exported PDFs are never stamped. • No dark patterns. The paywall has a real close button from the first moment, no countdown timers, and no fake urgency. WHAT YOU CAN DO • Merge PDFs with a thumbnail reorder grid • Split by page range or per-page • Compress with three presets (high quality, balanced, maximum) — local re-encode only • Annotate: highlight, underline, strikethrough, text box, freehand, and signature • Rotate, delete, and extract pages • On-device OCR for scanned PDFs in 30+ languages (Vision) • Add or remove a password (with your own password) and flatten annotations • Batch operations across many files at once PRIVACY BY DESIGN PDF Flow collects no data. There is no analytics SDK, no crash reporter beyond Apple-native tooling, and no network requests for your documents. OCR uses on-device text recognition; compression re-encodes locally. Your contracts, statements, and scans stay private because the app has nowhere to send them. FREE VS PRO Free: view, annotate, sign, and 3 merges / 3 splits / 3 compresses per day — never watermarked. Pro: unlimited merge, split, and compress; on-device OCR; password add/remove and flatten; batch operations; no caps. Built for lawyers, accountants, students, and anyone who wants a real PDF editor without subscription guilt or cloud exposure.