How to use the Add Watermark to Photos
- Drop one photo or a whole batch onto the box.
- Choose Text watermark and type your name or website, or choose Logo watermark and add your logo file.
- Adjust size, color, opacity and rotation, then pick one of the nine positions or tick Repeat across the whole image.
- Check the live preview, then download each photo or click Download all for a ZIP.
Features
- Text or logo watermarks
- Nine positions plus a tiled pattern
- Opacity, rotation, margin, font, color and shadow controls
- Size relative to each photo, so batches look consistent
- Batch processing with ZIP download
- Photos are processed locally and never uploaded
Why watermark your images?
A watermark is a visible mark that says who made an image. Photographers, designers, online sellers and anyone sharing original work use them for two reasons: to discourage people from reusing the picture without permission, and to make sure credit travels with the image when it is shared. A clean, consistent watermark also works as quiet branding, because people who like the photo can see where it came from.
Corner, center or tiled?
Placement is a trade-off between protection and how much the mark distracts from the photo:
| Placement | Protection | Distraction | Good for |
|---|---|---|---|
| Corner | Low: easy to crop off | Minimal | Portfolios, social posts, blogs |
| Center | Medium | Noticeable | Client proofs, previews |
| Tiled pattern | High: hard to crop or retouch | Strong | Stock previews, product photos at risk of copying |
A small rotation of −20° to −45° on a center or tiled mark makes it harder to remove with simple cloning tools and looks deliberate rather than accidental.
Getting opacity and size right
For a corner credit, 50–70% opacity with a soft shadow stays readable on both light and dark areas. For center or tiled marks, 20–40% is usually enough to protect the image while letting people judge it. The size is set as a share of each photo's width, not in fixed pixels. That way a batch of photos taken on different cameras, or a mix of portrait and landscape images, all get a watermark that looks the same relative to the picture.
Text or logo?
A text watermark is quick: your name, studio or web address with a © symbol. Keep it short; long sentences are hard to read at small sizes. A logo watermark looks more professional and reinforces a brand. Use a PNG or SVG with a transparent background so only the logo shows, not a white box around it. A white or light-gray version of your logo tends to work on most photos, especially with reduced opacity.
What a watermark can and cannot do
A watermark deters casual copying and keeps your name attached to the picture, but it is not a legal requirement for ownership. Under the Berne Convention, which most countries have signed, copyright exists automatically when you create a work, with or without a mark. Determined people can still remove watermarks with editing software, which is why tiled marks exist. In the United States, knowingly removing copyright management information such as a credit can itself be unlawful. For valuable work, combine watermarks with sharing lower-resolution copies; the Image Resizer makes that easy.
Tips
- Watermark copies, never your only original.
- Keep the same position, size and opacity across a set for a polished look.
- Check the preview on the busiest part of the photo; adjust color or shadow if the mark disappears.
- Before sharing, consider removing hidden location data with Remove Image Metadata.
All processing happens in your browser. Your photos and logo are never uploaded.
Frequently asked questions
Can I watermark many photos at once?
Yes. Add as many photos as you like. Every one gets the same watermark, scaled to its own size, and you can download them all as a ZIP.
How do I add my logo as a watermark?
Choose Logo watermark, add your logo file, then set its width, opacity and position. A PNG or SVG with a transparent background gives the cleanest result.
What opacity should a watermark have?
Around 50–70% for a small corner credit, and 20–40% for large center or tiled marks that should protect the image without hiding it.
Are my photos uploaded to add the watermark?
No. The watermark is drawn by your browser on your device, and nothing is sent to a server.
Does adding a watermark reduce photo quality?
The photo keeps its full resolution. With Same as input or PNG output, only the watermark pixels change; JPG and WebP add slight compression that is invisible at 90% quality or more.