What this tool does
Add text watermarks to images in your browser. Support diagonal repeating watermark or centered style, with control over text, color, angle, opacity, font size, and spacing.
Steps
- Upload Image: Click or drag a JPG/PNG image into the upload area.
- Enter Text: Set the watermark text in the input box.
- Select Style: Choose Diagonal repeat or Centered.
- Tweak Settings: Adjust color, angle, opacity, font size, and spacing.
- Apply: Click “Apply watermark” to render.
- Save: Click “Save image” to download.
Examples
- Light subtle mark: Opacity 0.15, size 18, angle 335°, spacing 36.
- Bold center mark: Style Centered, size 48, opacity 0.4.
- Dense protection: Diagonal repeat, size 16, spacing 20, opacity 0.25.
Tips
- Use semi‑transparent white (#FFFFFF, 0.15–0.3) for general images.
- For dark images, try light colors; for bright images, try darker gray.
- Increase spacing for large images to keep the pattern balanced.
Privacy & Security
- All processing is local in your browser; no uploads.
- Your images and watermark text never leave your device.
Important Notes
- Large files may take longer to render.
- Output format follows the original image type.
- Canvas size limits in browsers may affect very large images.