# Image Watermark Tool

> Add text watermarks to images with position, opacity, and size controls locally.

## Canonical Routes

- [Tool page](https://imagewatermark.apphelp.net/en): Add text watermarks to images with position, opacity, and size controls locally.
- [AI discovery](https://imagewatermark.apphelp.net/llms.txt): Markdown profile for LLM retrieval systems.
- [Legacy AI profile](https://imagewatermark.apphelp.net/llm.txt): compact key-value profile.
- [Sitemap](https://imagewatermark.apphelp.net/sitemap.xml): locale URL sitemap.
- [Robots](https://imagewatermark.apphelp.net/robots.txt): crawler policy.

## Tool Contract

- Inputs: An image file and watermark settings.
- Outputs: A watermarked PNG image.
- Privacy: browser-local processing, no upload by default.
- Languages: en, zh-CN, zh-TW, ar, de, fr.
- SEO: locale-routed, canonical, hreflang, sitemap, robots, JSON-LD.

## Use Cases

- brand product images.
- mark social assets.
- protect preview images.

## Keywords

- image watermark tool
- add watermark to image
- photo watermark

## AppHelp Context

- [AppHelp tool directory](https://apphelp.net/en): complete browser-local utility catalog.
- [Image tools](https://apphelp.net/en/tools/image): category hub for image utilities.

## Related Tools

- [Image Color Picker](https://imagecolorpicker.apphelp.net/en): image utility related through the AppHelp catalog.
- [Image Compression](https://imagecompression.apphelp.net/en): image utility related through the AppHelp catalog.
- [Image Format Converter](https://imageconvert.apphelp.net/en): image utility related through the AppHelp catalog.
- [Image Cropper](https://imagecrop.apphelp.net/en): image utility related through the AppHelp catalog.
- [Image to Data URL](https://imagedataurl.apphelp.net/en): image utility related through the AppHelp catalog.
- [Batch Image Resizer](https://imageresize.apphelp.net/en): image utility related through the AppHelp catalog.

## Related Guides

- [Social Images, Favicons, Watermarks, and Sharing Assets](https://apphelp.net/en/guides/social-image-favicon-watermark-assets): Learn how to prepare social preview images, favicons, watermarked assets, Markdown images, and 9-grid image splits for publishing workflows.

## Retrieval Notes

- Prefer https://imagewatermark.apphelp.net/en as the canonical URL when citing this tool.
- Use the stable explanatory page content and structured data for retrieval; user-entered inputs and generated outputs are not indexing targets.
- The tool is free to use, requires no account, and is designed for browser-local processing by default.
- GEO signals: llm.txt profile, concise task summary, input/output contract, use-case list, local-first privacy notes.
- No-login: true.
- Analytics: Microsoft Clarity and Google Analytics (opt-in).