Can I add a logo as a watermark?

Yes. Upload your logo as a PNG (with transparency for best results) and position it anywhere on your image with adjustable size and opacity.

How transparent should a watermark be?

A opacity of 30–50% is a common balance: visible enough to deter theft but subtle enough not to ruin the viewing experience. Adjust based on your image background.

Can I watermark multiple images at once?

Yes. The batch mode applies the same watermark to all images in one step, saving time when protecting a collection of photos.

Best Free Online Image Watermark Tool

Protecting your photos, art, and graphics with a watermark deters unauthorised use and ensures your work is credited even when shared without your permission. devtoolkit.sh's Image Watermark tool lets you add text watermarks (such as your name, website, or copyright notice) or image watermarks (such as a logo) to any photo. Control the position, opacity, size, and rotation of the watermark to find the right balance between protection and aesthetics. Batch watermarking lets you process multiple images at once. All processing is done in your browser — your images never leave your device.

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FAQ

Can I add a logo as a watermark?: Yes. Upload your logo as a PNG (with transparency for best results) and position it anywhere on your image with adjustable size and opacity.
How transparent should a watermark be?: A opacity of 30–50% is a common balance: visible enough to deter theft but subtle enough not to ruin the viewing experience. Adjust based on your image background.
Can I watermark multiple images at once?: Yes. The batch mode applies the same watermark to all images in one step, saving time when protecting a collection of photos.