Add Text Watermark to Image

A simple online image watermark tool for adding custom text watermarks to images.

选择图片

请选择一张图片开始添加水印

支持 JPG、PNG、GIF 等常见图片格式

Features

• Supports common image formats such as JPG, PNG, and GIF
• Customize watermark text
• Adjust font size, color, and opacity
• Choose watermark position such as top left, top right, bottom left, bottom right, or center
• Adjust watermark rotation from -45° to 45°
• Use a single watermark or tiled watermark mode
• Download the watermarked image with one click
• Supports dark mode

How to use

1. Click Select Image to upload your image
2. Adjust watermark settings in the left panel: text, font size, color, opacity, count, position, and angle
3. Preview the watermark on the right in real time
4. Click Download Image when satisfied

Technical notes

This tool runs entirely in the browser and does not upload your image to the server. It uses HTML5 Canvas for image processing and watermark rendering.