图片水印
在浏览器内为JPEG、PNG、WebP主图添加文字或图片水印，支持九宫格位置、透明度、文字颜色与字号或水印图宽度，并保持主图尺寸和格式下载。
使用步骤
如何使用
- Choose the main JPEG, PNG, or WebP image.
- Choose a text or image watermark, then set its size, opacity, and position.
- Apply the watermark, review the full-size result, and download it in the main image format.
Text and logo watermarks
Text mode provides a color and relative font-size control. Image mode accepts a JPEG, PNG, or WebP logo and scales it proportionally from its original aspect ratio.
Local output with clear limits
Both images stay in your browser. The result keeps the main image dimensions and format; PNG and WebP can retain transparency, while canvas output does not preserve source metadata.
常见问题
你可能还想知道
Can I add a transparent logo?
Yes. Use a PNG or WebP watermark image with transparency.
Can I move the watermark freely?
This version provides nine consistent positions from top left through bottom right, with a small edge inset.
Does the tool upload either image?
No. The main image and optional watermark image are processed locally in your browser.