# PDF-PRO Studio — All-in-One PDF Toolkit

> All-in-One PDF Toolkit (iPhone/iPad app by 爱华 刘.)

- Source: https://appshunter.io/ios/app/pdf-pro-studio/id6797690967 (this page in markdown: same URL + `.md`)
- Developer: [爱华 刘](https://appshunter.io/developer/1797362038)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 17.0 · 5 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-08-10
- Data updated: 2026-08-14
- User reviews in markdown: https://appshunter.io/ios/app/pdf-pro-studio/id6797690967/reviews.md

## What is PDF?

PDF-PRO is the all-in-one PDF studio for iPhone — read, annotate, merge, split, compress, OCR, sign and encrypt, all on your device.

Built natively with Apple's PDFKit, VisionKit, Vision, PencilKit and StoreKit 2, PDF-PRO pairs a modern iOS design with serious document power. Best of all, every operation runs locally and offline — your files never leave your device.

READ & ANNOTATE
• Smooth PDFKit rendering with continuous scroll, pinch-to-zoom and single-page modes
• Highlight, underline, strikeout and freehand ink
• Bookmark, search and jump between pages instantly

ORGANIZE
• Merge multiple PDFs into one, or split a document into separate files
• Reorder, rotate and delete pages with drag-and-drop
• Convert photos and scans into clean, A4-sized PDFs

OCR TEXT EXTRACTION
• Powered by Apple Vision — recognize text in multiple languages
• Copy recognized text straight from any page

COMPRESS
• Shrink large PDFs by up to 80% with Light / Standard / Deep presets
• Perfect for email and messaging size limits

SIGN & STAMP
• Draw a smooth handwritten signature with PencilKit
• Insert and resize your signature or stamps anywhere

PROTECT
• Add or remove strong PDF passwords (AES encryption)
• Apply a custom, diagonal copyright watermark

SCAN
• Use the camera to scan paper documents and receipts into high-quality PDFs

PRIVACY FIRST
PDF-PRO works fully offline. Merging, splitting, compression and OCR are processed entirely on your device — no third-party servers, no uploads.

PDF-PRO is free to use for reading, scanning and basic annotation. Upgrade to Pro for unlimited signature, OCR, compression, encryption, watermarking, merging and splitting.

• Weekly — short-term access
• Yearly — best value, with a 3-day free trial
• Lifetime — pay once, yours forever

Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings.

Terms of Service (Apple standard EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| PDF-PRO Yearly (3-Day Trial) | $24.99 | per year |
| PDF-PRO Monthly | $3.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PDF-PRO Lifetime Pass | $59.99 | one-time |



## Version history (last 1 release)

### 1.0.0 — 2026-08-11

No release notes.

## More apps by 爱华 刘

- [FeedingRecord](https://appshunter.io/ios/app/feedingrecord/id6742208775)
- [InterFit Timer - Workout Timer](https://appshunter.io/ios/app/interfit-timer-workout-timer/id6742210663)
- [Kickly](https://appshunter.io/ios/app/kickly/id6742211559)
- [ContractionMate](https://appshunter.io/ios/app/contractionmate/id6742660221)
- [产检助手-孕期记录与提醒](https://appshunter.io/ios/app/id6748213321)
- [Lockus - Focus & Zen](https://appshunter.io/ios/app/lockus-focus-and-zen/id6757218099)

All apps by 爱华 刘: https://appshunter.io/developer/1797362038

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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 2026-08-14.*