图片加水印
给图片加文字水印，保护原创图。本地处理不上传。
旅行图/美食图常加站名或署名水印防盗图；透明度 30-50% 兼顾美观与保护。
中文介绍
原创旅行图、美食图常被搬运，加个站名或署名水印能有效防盗图，也是品牌露出。字号、颜色、透明度、位置都可调，还能整张平铺。
浏览器本地处理，图片不上传。建议透明度 30-50%，既可见又不过分遮挡画面。
常见问题
水印会破坏图片吗？
不会破坏原图，水印是叠加层，导出的是带水印新图，原图不受影响。
能调整水印大小位置吗？
能。字号 10-200px、透明度 5-100%、颜色任意，位置支持四角/居中/整张平铺。
图片上传吗？
不上传。加水印在你浏览器内存里完成，刷新即清空。
English
Original travel and food photos often get reposted; a site or credit watermark discourages theft and doubles as branding. Size, color, opacity and position are all adjustable, and you can tile the whole image.
Processed locally in your browser — nothing is uploaded. 30-50% opacity is usually the sweet spot: visible but not distracting.
FAQ
Does the watermark damage my photo?
No. The watermark is an overlay; the export is a new watermarked image and the original is untouched.
Can I adjust size and position?
Yes. Font size 10-200px, opacity 5-100%, any color, and positions at the four corners, center, or tiled.
Is the image uploaded?
No. Watermarking happens in browser memory; a refresh clears everything.