# PDF Signer: Sign, Stamp, Edit — Merge, Split & Encrypt PDFs

> Merge, Split & Encrypt PDFs (iPhone/iPad app by Chongqing Mengwo Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/pdf-signer-sign-stamp-edit/id6762083786 (this page in markdown: same URL + `.md`)
- Developer: [Chongqing Mengwo Technology Co., Ltd.](https://appshunter.io/developer/1062156979)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 56 MB
- Languages: English, Chinese, Chinese
- Released: 2026-04-14
- Data updated: 2026-07-09
- User reviews in markdown: https://appshunter.io/ios/app/pdf-signer-sign-stamp-edit/id6762083786/reviews.md

## What is PDF Signer?

PDF Signer is an offline-first PDF toolkit for iPhone and iPad. Sign, stamp, edit, convert, protect, and export PDFs with a workflow that stays fast and privacy-friendly.

Whether you need to sign a contract, add a seal, merge files, split pages, or secure a document before sharing, the app is designed to help you finish the job locally on your device whenever possible.

Key features
• Handwritten signatures and imported image signatures
• Custom seals, image seals, and across-page seals
• PDF editing: merge, split, extract, reorder, delete, rotate, and crop pages
• Watermarks, page numbers, and redaction
• Image to PDF and PDF to image
• Password protection, password removal, and permissions control
• Recent files and local network transfer

Why users choose PDF Signer
• Offline-first processing for everyday PDF work
• Reusable signature and seal assets for faster repeat tasks
• Reliable export results for contracts, approvals, markup, and archiving
• Clean bilingual UI with dark mode support

The app offers free core usage and a one-time lifetime membership unlock.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Membership | $3.99 | one-time |



## Version history (last 5 releases)

### 1.5 — 2026-06-06

fix some bugs

### 1.4 — 2026-05-27

fix some bugs

### 1.3 — 2026-05-19

fix some bugs

### 1.2 — 2026-05-06

Fix the issues reported by users

### 1.1 — 2026-04-20

fix some bugs

## More apps by Chongqing Mengwo Technology Co., Ltd.

- [AI Voice Changer & Dubbing](https://appshunter.io/ios/app/ai-voice-changer-and-dubbing/id1121516248)
- [Cute ID Photo](https://appshunter.io/ios/app/cute-id-photo/id6755084734)
- [LiveBloom - Live Photo Maker](https://appshunter.io/ios/app/livebloom-live-photo-maker/id6756251918)
- [HabitQuit - Reverse Habit](https://appshunter.io/ios/app/habitquit-reverse-habit/id6758292341)
- [Worker Tools](https://appshunter.io/ios/app/worker-tools/id6764507797)

All apps by Chongqing Mengwo Technology Co., Ltd.: https://appshunter.io/developer/1062156979

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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 2026-07-09.*