# PDF Flow: Edit & Scan — Scan, edit, sign & fill PDFs

> Scan, edit, sign & fill PDFs (iPhone/iPad app by jiahao zhang.)

- Source: https://appshunter.io/ios/app/pdf-flow-edit-and-scan/id6782627524 (this page in markdown: same URL + `.md`)
- Developer: [jiahao zhang](https://appshunter.io/developer/1895708572)
- Category: Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-06-24
- Data updated: 2026-07-30
- User reviews in markdown: https://appshunter.io/ios/app/pdf-flow-edit-and-scan/id6782627524/reviews.md

## What is PDF Flow?

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.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PDF Flow Pro | $19.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2026-06-30

Performance improvements and minor fixes.

### 1.0 — 2026-06-25

No release notes.

## More apps by jiahao zhang

- [Overlord: Rude Habit AI](https://appshunter.io/ios/app/overlord-rude-habit-ai/id6764263951)
- [ghost: letters never sent](https://appshunter.io/ios/app/ghost-letters-never-sent/id6764834872)
- [Flicker · letters at night](https://appshunter.io/ios/app/flicker-letters-at-night/id6765566805)
- [Pool: Visual Timer](https://appshunter.io/ios/app/pool-visual-timer/id6765821070)
- [Phase: Perimenopause & HRT](https://appshunter.io/ios/app/phase-perimenopause-and-hrt/id6765830533)
- [Rehearsal: Interview Prep](https://appshunter.io/ios/app/rehearsal-interview-prep/id6765836387)

All apps by jiahao zhang: https://appshunter.io/developer/1895708572

## Related topics

[pdf flow pro](https://appshunter.io/ios/topics/pdf-flow-pro)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-30.*