Add Watermark to Image — Free Text & Logo Watermark Tool
Protect your photos with a text or logo mark — nothing is uploaded.
100% in your browser — files never uploaded
Live preview
Position
100% in your browser — files never uploaded
How to add a text watermark to a photo
Upload your image, type your watermark text — a copyright line, your name, or your brand — pick a color, choose one of nine positions, and set opacity and size with the sliders. The preview updates live with every change so you can find the exact balance between visibility and subtlety before downloading. Most creators land between 30–60% opacity in a corner position.
Add a logo watermark with transparency
Switch to the Logo tab and upload your logo file. A PNG with a transparent background works best, because the transparency is preserved when the logo is composited onto your photo. The size slider scales the logo relative to the image width, so the same settings produce consistent results across photos of different resolutions — useful when marking a whole shoot one image at a time.
Where should a watermark go?
Bottom-right is the convention and least intrusive, but it's also the easiest to crop out. For stronger protection, use the center position at low opacity (15–25%) so the mark overlays the subject without ruining the photo. Diagonal-corner cropping attacks fail against centered marks. All compositing happens in your browser via the Canvas API — your originals and your logo never leave your device.
Frequently asked questions
What opacity should I use for a watermark?
30–60% for corner text marks, 15–25% for large centered marks. The live preview lets you fine-tune per photo — darker images need higher opacity to keep the mark legible.
Can I use a transparent PNG logo?
Yes — that's the recommended format. Transparent areas in the PNG stay transparent when composited onto your photo.
Are my photos or logo uploaded?
No. Watermarking runs entirely client-side in your browser. Neither the photo nor your logo is sent to any server.
Does the watermark protect my image legally?
A watermark deters casual reuse and asserts authorship visibly, but copyright exists in your work regardless. For commercial disputes, registered copyright and original files are the stronger evidence.
Why does the watermark size stay proportional?
Size is set as a percentage of the image width, not fixed pixels — so the same setting looks consistent on a 1000px web image and a 6000px camera original.
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Data verified: 2026-06-11 · All processing happens in your browser — no files are ever uploaded.