ToolJovia
Images

Image Watermark

Add a local text watermark with bounded opacity, size and placement.

✓ Browser-local processing

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How to use Image Watermark

Add a local text watermark with bounded opacity, size and placement. Text is painted as pixels with Canvas2D and never interpreted as HTML. Choose a corner or centered placement and download a separate PNG.

  1. Provide the input and select the documented mode or options.
  2. Run the tool and review its result and any limits reported below.
  3. Copy the text result or download a separate output file.

Good to know

  • PNG, JPEG or WebP only;10MiB per image,24 megapixels and12,000 pixels per side. The browser applies supported EXIF orientation.
  • Raster export does not preserve animation, original color profiles or embedded metadata. Keep your original file.
  • Text up to500 characters; system sans-serif font; no logo overlays, watermark removal or ownership verification.
  • Processing happens in this browser tab. Inputs and results are not automatically saved or uploaded.

Common questions

What does Image Watermark process?

Text is painted as pixels with Canvas2D and never interpreted as HTML. Choose a corner or centered placement and download a separate PNG.

What happens to my original input?

The tool creates a separate result. Selected files and pasted data remain on this device; inspect the result before using it in another system.

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