How to Add Watermarks with Claude
Add watermarks to images with Claude and ToolRouter. Brand protection and consistent image marking.
Tool
Claude makes watermarking an iterative terminal workflow. Describe your watermark requirements -- logo placement, opacity, style -- and Claude asks clarifying questions about the intended use case before applying. Preview the result on a test image first, adjust positioning and transparency with conversational feedback, then batch-apply the finalized settings across your library.
Connect ToolRouter to Claude
1Go to Settings → Connectors → Add custom connector
2Enter the details below and click Add
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Done — works on Claude chat, desktop, and mobile
Steps
Once connected (see setup above), use the Image Ops tool:
- Ask Claude: "Add a watermark to this image using image-ops -- use our company logo in the bottom right"
- Claude applies the watermark using transform_image
- Review the watermarked image and adjust opacity or position as needed
- Ask Claude to apply the same watermark to your entire image batch
Example Prompt
Try this with Claude using the Image Ops tool
Add our logo watermark to all product images. Place it in the bottom right at 30% opacity.
Tips
- Ask Claude to test different watermark positions and opacities before batch processing
- Request watermark styles appropriate for different use cases -- preview vs distribution
- Claude can apply different watermarks based on image content or destination