How to Add Watermarks with OpenClaw
Add image watermarks with OpenClaw and ToolRouter. Brand protection for your visual content.
Tool
OpenClaw automates watermarking across entire image libraries with consistent positioning and styling in structured batch operations. Define watermark templates with precise opacity, position, and scaling parameters, then process thousands of images without manual intervention. Output includes processing logs and organized watermarked file directories.
Connect ToolRouter to OpenClaw
1Install the CLI
npm install -g toolrouter-mcp2Call tools directly from OpenClaw
toolrouter-mcp call web-search search --query "AI tools"
toolrouter-mcp toolsSteps
Once connected (see setup above), use the Image Ops tool:
- Ask OpenClaw: "Add a watermark to this image"
- OpenClaw applies the watermark and returns the result
- Adjust watermark settings and re-process if needed
- Apply consistently across your image library
Example Prompt
Try this with OpenClaw using the Image Ops tool
Add our company watermark to all product photos. Bottom-right corner, semi-transparent.
Tips
- Standardize your watermark settings for brand consistency
- Test watermark visibility across different image types and backgrounds
- Maintain unwatermarked originals for internal use