画像に透かしを追加 - テキスト・ロゴを無料で挿入
JPG、PNG、WEBP、AVIF画像にテキストまたはロゴの透かしを追加できます。位置、繰り返し、回転、サイズ、透明度をプレビューして調整できます。
Can I add a logo watermark?
Yes. Choose text or logo, then adjust placement, size, opacity, rotation, contrast, and single or tiled coverage before export.
Will Media Tools add its own watermark?
No. The exported image includes only the watermark you create.
Which image formats are supported?
The image toolkit accepts common browser-compatible images and exports JPG, PNG, WEBP, or AVIF.
Can a watermark completely prevent copying?
No. A visible watermark discourages casual reuse and preserves attribution, but it cannot stop every screenshot, crop, or manual edit.