Watermark

---
name: "watermark"
version: "1.0.0"
description: "Watermark reference — visible and invisible watermarking, steganography, copyright protection, detection. Use when implementing watermarks for images, documents, or media, or understanding digital rights management."
author: "BytesAgain"
homepage: "https://bytesagain.com"
source: "https://github.com/bytesagain/ai-skills"
tags: [watermark, steganography, copyright, drm, image-protection, digital-forensics, content-authenticity]
category: "frontend"
---

# Watermark — Watermarking Reference

Quick-reference skill for watermarking techniques, implementation, and digital content protection.

## When to Use

- Adding visible watermarks to images and documents
- Understanding invisible/digital watermarking for tracking
- Implementing CSS/canvas watermarks in web applications
- Protecting intellectual property and detecting unauthorized use
- Understanding steganography and content authenticity

## Commands

### `intro`

```bash
scripts/script.sh intro
```

Watermarking overview — types, purposes, visible vs invisible, history.

### `visible`

```bash
scripts/script.sh visible
```

Visible watermarks — design principles, placement, opacity, tamper resistance.

### `invisible`

```bash
scripts/script.sh invisible
```

Invisible watermarks — frequency domain, LSB, spread spectrum, robustness.

### `web`

```bash
scripts/script.sh web
```

Web watermarking — CSS overlay, canvas-based, DOM watermarks, anti-removal.

### `document`

```bash
scripts/script.sh document
```

Document watermarking — PDF, print, forensic tracking, canary traps.

### `ai`

```bash
scripts/script.sh ai
```

AI watermarking — C2PA standard, AI-generated content marking, detection.

### `attacks`

```bash
scripts/script.sh attacks
```

Watermark attacks — removal, distortion, collusion, and countermeasures.

### `checklist`

```bash
scripts/script.sh checklist
```

Watermark implementation checklist for different use cases.

### `help`

```bash
scripts/script.sh help
```

### `version`

```bash
scripts/script.sh version
```

---

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