TL;DR: Upload an image, choose text or another image as the watermark, set position + opacity, and download the watermarked file.
Add text or image watermarks to photos online for free — protect your images with customizable watermarks. Control opacity, position, and size. Batch watermark multiple images at once.
Add Watermark to Image is one of 179+ free file utilities on PrivaTools. The entire stack is open source under the MIT license, so the privacy guarantees can be audited end-to-end. You can also run all 179 tools on your own infrastructure with one docker compose command.
Currently text-only watermarks. Image watermarks (logo overlay) are on the roadmap.
Depends on placement. Watermarks over high-detail areas are harder to remove than over solid backgrounds. AI inpainting tools can sometimes erase them — for stronger protection, use diagonal repeating patterns.
Negligibly. Output is at the same JPEG quality as input.
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