Quick Start
- Open HeronTool's Image Watermark tool.
- Click "Upload Image" and select the image(s) to watermark (JPG, PNG, etc.).
- In the right panel, choose watermark type: Text Watermark or Image Watermark.
- Text: enter text, adjust font, size, color, opacity, and rotation.
- Image: upload a transparent PNG logo, adjust scaling and opacity.
- Set position (click nine-grid or input coordinates), and optionally enable tiling.
- Click "Preview" to review, then "Export" to download.
Advanced Tips
- Batch processing: Upload multiple images at once; the same watermark settings apply to all, saving time.
- Anti-tampering: Use diagonal tiled watermarks (tile + rotate 45°) to make unauthorized use harder.
- Keep opacity between 20%-40% for a subtle yet visible mark.
FAQ
Q: Watermark is too faint to see?
A: Increase opacity (e.g., from 30% to 60%) or enlarge font/logo size.
Q: Can I place the watermark only in a specific area?
A: Yes, input exact coordinates (e.g., X=100, Y=200) for precise placement.
Q: Does export reduce image quality?
A: HeronTool preserves original resolution by default; you can manually choose export quality (recommend 90%+).
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