Add Watermark to Image

What this tool does

Add Watermark to Image places a copyright line, your name or a logo on one photo or a whole batch. Size, opacity, rotation and margin scale with each image, so a watermark looks the same on a small portrait and a wide panorama.

Photographers, shops and designers publish images that are easy to save and repost without credit. A visible watermark does not make copying impossible, but it keeps your name attached to the picture wherever it travels and discourages casual reuse in listings or adverts.

This tool draws the watermark with the canvas API at the full resolution of each photo. Text size and logo width are set as a percentage of the image, so a batch of mixed sizes gets a consistent look. You can anchor the mark to a corner or edge, centre it, or repeat it diagonally across the whole frame. Everything runs locally in your browser, which matters when the photos are unpublished client work.

How to use Add Watermark to Image

1. Add your photos with drag and drop, Ctrl+V or Try a sample image.
2. Under Watermark type choose Text or Logo image.
3. For text, type the line, then set Font, Bold, Text colour, Dark outline and Text size; for a logo, choose the file and set Logo width.
4. Set Opacity and Rotation, then pick a Layout: Single with one of nine positions and a Margin, or Tiled pattern with Spacing.
5. Choose the Output format and quality, and check the live preview.
6. Press Add watermark and download single files or Download all (ZIP).

Tips for better results

• An opacity of 30-50% is visible without ruining the photo; 15-20% works for tiled patterns.
• Keep Dark outline on for white text so it stays readable over skies and bright walls.
• A transparent PNG logo looks far cleaner than a JPG logo with a white box around it.
• Rotating a tiled pattern by about -30 degrees makes it much harder to crop or clone out.

Common use cases

• Marking proof images sent to a client before final payment or approval.
• Branding product photos for a marketplace listing or social media.
• Adding a copyright line to a portfolio gallery.
• Stamping CONFIDENTIAL or DRAFT across document scans and screenshots.

Common mistakes to avoid

• Putting a small mark in a corner of an image that is easy to crop; use the centre or a tiled layout for sensitive previews.
• Watermarking the only copy: always keep the clean originals, because the mark is merged into the pixels.
• Saving with JPG at very low quality, which makes thin text look blocky.