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How to Watermark Images

Updated 2026-09-13 · DocsAll Guides

Quick answer: Protect photos with a text or logo watermark — single images or batches. Open 图片水印 — everything runs locally in your browser, and files never leave your device.

Steps

  1. Upload images to the Watermark tool.
  2. Choose text or upload a transparent PNG logo.
  3. Set position, opacity, and optional tiling across the whole image.
  4. Download the watermarked images.

Important notes

  • For deterrence, tiled semi-transparent (30–50%) watermarks beat a single centered one; a giant centered logo ruins the photo for legitimate viewers too.
  • A watermark signals ownership but does not restrict copying — combine it with publishing low-resolution versions for real protection.

Common questions

Can I add multi-line text? Yes, the text box supports line breaks.

Can it remove existing watermarks? No — this tool only adds watermarks.

Related Guides

Image Format & Compression Guides

PNG vs JPG vs WebP decisions, batch compression and resizing — with free in-browser tools.