# Secure Watermark — Certificate & photo watermark

> App for adding custom text, image, or signature watermarks to protect digital content. (iPhone/iPad app by 泽海 黄.)

- Source: https://appshunter.io/ios/app/secure-watermark/id6504274596 (this page in markdown: same URL + `.md`)
- Developer: [泽海 黄](https://appshunter.io/developer/1069894245)
- Category: Utilities, Productivity
- Price: Free
- Rating: 1.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: Arabic, English, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian and 13 more
- Released: 2024-07-21
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/secure-watermark/id6504274596/reviews.md

## What is Secure Watermark?

[Applicable scenarios]

- Protect your ID card, bank card, driver's license and other ID photos to prevent unauthorized use.

- Protect your photos, paintings, digital works to prevent unauthorized use.

[Watermark type]

The application supports three types of watermarks: rich text watermarks, image watermarks and handwritten signature watermarks, and supports full screen and single watermark functions.

[Rich text watermark]

- Supports multi-line text watermarks.

- Customizable font color, background color, transparency, font style (bold, italic), size, etc.

- Provides adjustment functions for alignment, line spacing, watermark spacing and rotation angle.

[ID mode]

- ID mode supports importing ID card front and back images, and automatically adjusts to A4 paper size to ensure that the printing effect is consistent with the actual object.

- You can choose to display the ID card outline and support manual scaling of the image.

- Can be exported as an image or PDF document, with an output resolution of 300 DPI A4 paper.

[Image watermark]

- Customized images can be inserted as watermarks.
- Supports adjusting image size, transparency, watermark spacing and rotation angle.

[Handwritten Signature Watermark]

- Provides multiple pen stroke types such as fountain pen, water pen, etc.

- Customizable stroke color and size.

- Supports undo, redo functions and eraser.

- Provides a convenient watermark management list.

## Key features

- Rich text watermarks with full customization
- Image watermarks with adjustable transparency
- Handwritten signature watermarks
- ID mode for secure document protection
- Export as image or PDF at 300 DPI
- Watermark management list


## Frequently asked questions about Secure Watermark

### What types of watermarks does Secure Watermark support?

Secure Watermark supports three types of watermarks: rich text, image, and handwritten signature. You can also choose between full-screen or single watermark placement.

### Can I customize the text watermarks in Secure Watermark?

Yes, text watermarks are highly customizable. You can adjust font color, background color, transparency, font style (bold, italic), size, alignment, line spacing, and rotation angle.

### How does Secure Watermark protect ID cards?

The ID mode in Secure Watermark allows you to import ID card images and automatically adjusts them to A4 size for consistent printing. You can also choose to display the ID card outline and manually scale the image.

### What export options are available in Secure Watermark?

Secure Watermark allows you to export your watermarked content as either an image file or a PDF document. The output resolution is 300 DPI on A4 paper for ID mode.

### Does Secure Watermark have ads?

No, Secure Watermark does not contain advertisements, providing an uninterrupted user experience.

### What is the update frequency for Secure Watermark?

Secure Watermark was last updated on August 1, 2024, with version 1.0.1. The initial release was on July 21, 2024, indicating recent development activity.

### Is Secure Watermark available on Android devices?

Currently, Secure Watermark is available for iPhone and iPad devices. Support for Android devices has not been specified.

### What is the user sentiment for Secure Watermark based on ratings?

Based on the available data, Secure Watermark has a rating of 1.0 stars from 1 rating, suggesting a need for further user feedback to gauge overall sentiment.

## Version history (last 2 releases)

### 1.0.1 — 2024-08-01

1. The theme color changed from blue to purple
2. Adjust the default font size of the text watermark

### 1.0 — 2024-07-21

No release notes.

## Apps similar to Secure Watermark

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [FastID - 證件自動拍、浮水印隨手上](https://appshunter.io/ios/app/fastid/id1558782763) | — | Free | Utilities |
| [Tutu Watermark](https://appshunter.io/ios/app/tutu-watermark/id6711340833) | — | Free | Utilities |
| [Add Watermark+](https://appshunter.io/ios/app/add-watermark-plus/id6657986141) | — | Free | Utilities |
| [SafeMark](https://appshunter.io/ios/app/safemark/id6744825189) | — | Free | Utilities |
| [Watermark maker - Marklio](https://appshunter.io/ios/app/watermark-maker-marklio/id1609667205) | 4.7 (30) | Free | Utilities |
| [Docmark](https://appshunter.io/ios/app/docmark/id6711330172) | — | Free | Utilities |

## More apps by 泽海 黄

- [Ruyi Camera](https://appshunter.io/ios/app/ruyi-camera/id6670307217)
- [GoPackIt: Travel Checklist](https://appshunter.io/ios/app/gopackit-travel-checklist/id6761257072)

All apps by 泽海 黄: https://appshunter.io/developer/1069894245

---

*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 2026-06-01.*