# 暗水印 — 数字水印，给图片添加隐藏信息

> 数字水印，给图片添加隐藏信息 (iPhone/iPad app by 冉 刘.)

- Source: https://appshunter.io/ios/app/id6443768369 (this page in markdown: same URL + `.md`)
- Developer: [冉 刘](https://appshunter.io/developer/1531594017)
- Category: Utilities, Graphics & Design
- Price: Free
- Age rating: 4+
- Requires: iOS 11.0 · 18 MB
- Languages: English, Chinese
- Released: 2022-11-04
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/id6443768369/reviews.md

## What is 暗水印?

What is an invisible watermark?
Invisible watermarks refer to watermarks hidden in pictures that are difficult to see with the naked eye. Compared with common clear watermarks, invisible watermarks are transparent and invisible to most perceptual systems.

What does the invisible watermark app do?
With the development of society, the protection of digital rights is becoming more and more urgent. The invisible watermark app can help you embed your own information in photos and protect your rights.

The app is simple and free, use it quickly.


## Version history (last 3 releases)

### 1.1.1 — 2023-03-31

Optimize existing functions and fix bugs.

### 1.1.0 — 2023-03-07

New encryption method, better anti-attack.

### 1.0.0 — 2022-11-04

No release notes.

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## More apps by 冉 刘

- [AI识狗](https://appshunter.io/ios/app/ai/id1531594212)
- [ChatAI Plus智能聊天 绘画 写作 学习 工作](https://appshunter.io/ios/app/chatai-plus/id6447493690)
- [AI Debate](https://appshunter.io/ios/app/ai-debate/id6449283652)
- [AI Confidant](https://appshunter.io/ios/app/ai-confidant/id6455427454)
- [Amazing QR](https://appshunter.io/ios/app/amazing-qr/id6479361192)

All apps by 冉 刘: https://appshunter.io/developer/1531594017

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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 2026-05-19.*