Image Watermark Adder
Add a text watermark to one or many photos in a single pass — genuinely batch, since watermarking is usually needed for a whole set of photos, not just one. Place it at a single corner/edge position for a subtle credit line, or repeated in a tiled pattern across the whole image for protection that's harder to crop out. A live preview on your actual first photo shows the exact result as you adjust size, opacity, and rotation. One image downloads directly; several are zipped. Runs entirely client-side using the Canvas API — nothing is uploaded.
About this tool
This tool adds a text watermark to one or many photos at once — genuinely batch, since the real use case (a photographer protecting a set of preview images before sending them to a client, or someone marking up a batch of product photos) rarely means watermarking just one image at a time. Two placement modes cover the two real reasons people watermark: a single position in a corner or edge for a subtle credit/copyright notice, or a repeated tiled pattern covering the whole image for stronger protection that's meaningfully harder to crop out than a single mark in the corner. A live preview renders the exact same watermark on your actual first photo — not an approximation — updating instantly as you adjust text, placement, size, opacity, or rotation, so every image in the batch gets the settings you've already confirmed look right. It runs entirely client-side using the Canvas API — nothing you upload is ever sent anywhere.
What you can do
- Watermark multiple photos at once — a real batch tool, not one image at a time
- A single corner/edge position, or a repeated tiled pattern across the whole photo
- A live preview on your actual first photo, updating instantly as you adjust size, opacity, and rotation
- Nothing is uploaded — everything runs locally in your browser
How to use
Step 1
Upload your photos and set the text
Add as many images as you need watermarked — a name, copyright notice, or business name.
Step 2
Pick a placement and check the preview
A single position (9 anchor points) or a repeated tiled pattern — the live preview shows exactly how it'll look.
Step 3
Apply and download
One image downloads directly; several are bundled into a .zip.
Example
12 preview photos, watermarked in one pass:
Settings
"© Jane Smith Photography" · Repeated tiled · Opacity 40%
produces 12 watermarked images, bundled into a single .zip download.
How your data is handled
This tool is labeled 🟢 Browser: your photos are watermarked directly in your browser using the Canvas API — nothing is uploaded to a server, and nothing about it is retained once you leave the page.
Frequently asked questions
What's the difference between single position and repeated (tiled)?+
Single position places one watermark at a chosen corner or edge — subtle, good for a simple credit line. Repeated tiles the watermark across the entire image in a grid, which is meaningfully harder to crop or clone out, better when you actually need to discourage misuse rather than just label the image.
Does the preview reflect all my photos, or just one?+
It renders your first uploaded photo with the exact same settings that get applied to every image when you click Apply — a real preview, not a simulation. If your photos vary a lot in size or aspect ratio, the watermark's proportional size and position will match on each one even though the preview only shows the first.
Can I watermark more than one photo at a time?+
Yes — upload as many as you need. They're all watermarked with the same settings in one pass, and downloaded as a single .zip if there's more than one.
Can I remove a watermark added by this tool?+
Not with this tool — the watermark is drawn directly into the image's pixels, the same as any other part of the photo, so it isn't a separate, removable layer.
Does watermarking reduce photo quality?+
The photo itself is otherwise untouched — only the watermark text is added on top. Saving re-encodes the image (JPEG stays JPEG, PNG stays PNG), so there's the same minor quality consideration as any JPEG re-save, unrelated to the watermark itself.
Are my photos uploaded anywhere?+
No — they're watermarked directly in your browser using the Canvas API. Nothing here ever leaves your device.