Upload a photo to watermark
Accepted formats: JPG, PNG, WEBP, BMP, GIF (non-animated)
Paste (Ctrl/⌘+V) or drop an image — or import from a URL
A logo or image watermark is a small picture — usually a brand logo, a signature, or a copyright mark — laid over a photo to show who made or owns it. This tool composites your own image directly onto a photo in the browser. Upload the base photo, add your logo (a PNG with a transparent background gives the cleanest result, because only the logo's shape is drawn, not a rectangle around it), and the logo is bilinearly scaled to the size you choose as a percentage of the photo's width, with its aspect ratio preserved. You then decide where it sits: pick one of nine positions — the four corners, the edge mid-points, or the centre — and set a margin to inset it from the edges, or switch on Tile to repeat the logo in a grid across the whole image, the standard way to make a photo hard to reuse. Opacity controls how strongly the logo shows, from a faint, subtle mark to a fully opaque stamp, and it is blended with correct source-over alpha so a semi-transparent logo sits naturally over the picture. Everything runs locally on the HTML canvas and the result downloads as a PNG — neither the photo nor the logo is ever uploaded, there is no sign-up, and we add no watermark of our own.
How It Works
Choose a tool
Pick from 120+ tools to resize, convert, compress, or enhance your image.
Upload & edit
Drag and drop your image and adjust the settings. It stays on your device.
Download
Save your result instantly — no watermark, no sign-up required.
Why Image Machine?
Your files never leave your device
All processing runs locally in your browser. Your images are never uploaded to a server.
Completely free
Every tool is free, with no limits, no watermarks, and no hidden costs.
Lightning fast
No upload waiting — your images are processed instantly on your own device.
Professional quality
Pixel-perfect output with full control over format, size, and quality.
Frequently Asked Questions
How do I add my logo as a watermark?
Upload your photo, then click Add logo image and choose your logo file. It appears on the photo straight away. Use the Position grid to pick a corner, edge, or the centre, and the Size, Opacity, and Margin sliders to fine-tune how it looks. When you are happy, press Download to save the watermarked photo as a PNG.
What kind of logo image should I use?
A PNG with a transparent background works best, because only the shape of your logo is drawn over the photo rather than a solid rectangle around it. A plain JPG works too, but its background will show as a box. The logo keeps its own aspect ratio when it is scaled, so it never looks stretched.
Can I repeat the watermark across the whole photo?
Yes. Turn on Tile and the logo is repeated in a grid over the entire image, with the Margin slider controlling the gap between copies. A tiled, semi-transparent watermark is the usual way to make a photo difficult to crop or reuse without your mark.
Is my photo or logo uploaded anywhere?
No. The whole composite runs in your browser on the HTML canvas — neither the photo nor the logo ever leaves your device, nothing is sent to a server, and there is no sign-up. The result is fully deterministic and downloads as a PNG.