Add a text or logo watermark to your photos
Put your name, a © line or your logo on a whole set of photos in one pass, scaled to suit each image.
- Processed on your device. Your photos are never uploaded. How we know
- Free, no sign-up, no watermark
Drop photos to watermark
Drop files, paste with Ctrl+V, or choose them from your device.
PixWrench’s code runs on your device. We don’t receive your files, file names or their contents.
PixWrench’s code runs on your device. We don’t receive your files, file names or their contents. What happens to your files
How to watermark photos in bulk with text or a logo
A watermark says “this is mine” before anyone reads a caption. Photographers use it on proofs, sellers on product shots, and small businesses on anything that might be reposted without credit. Doing it one photo at a time is tedious, so this tool applies the same mark to a whole batch.
Because the size is set as a share of each image’s width, a portrait from your phone and a wide shot from a camera end up with marks that look the same. If you plan to post the results, our social media image size guide helps you pick dimensions first.
- 1
Add your photos
Drop in one image or a batch. Select any one of them to use for the live preview.
- 2
Design the mark
Type your text or add a logo, then set typeface, size, color, opacity, rotation and a corner, edge or center position, or tile it.
- 3
Export the batch
Keep the original formats or pick one, then download each photo or all of them in a zip.
What this tool does
- Text watermark in sans, serif, mono or display type
- Text size as a percentage of image width, with color, opacity and bold
- Outline or shadow so text stays readable on busy backgrounds
- Logo watermark with scale and opacity
- Nine-point position grid with adjustable margin, or a diagonal tile
- Rotation and a live preview on the selected photo
- One setting applied proportionally to every image in the batch
- Saved in the original format (JPG and WebP at quality 92) or a format you choose
One setting, two very different photos
Set the text size to 5% of the image width. Everything scales from there:
| Photo width | Text size at 5% | Same text at 3% |
|---|---|---|
| 4000 px (camera) | 200 px | 120 px |
| 1600 px (our test photo) | 80 px | 48 px |
| 1080 px (social upload) | 54 px | about 32 px |
That is simple multiplication, and it’s why a fixed pixel size would fail: 54 px text looks tidy on a 1080 px image but becomes a speck on a 4000 px one. With proportional sizing the mark covers the same share of every frame.
How the mark is applied
Each photo is decoded and turned upright, then your text or logo is drawn onto its pixels at the chosen position, opacity and angle. Placement uses a nine-point grid (corners, edge centers and the middle), inset by the margin you set, or a diagonal tile that repeats across the whole frame.
The result is a flat image: the mark is part of the picture, not a removable layer. Photos saved as JPG or WebP use quality 92 (the MozJPEG and libwebp encoders, compiled to WebAssembly), while PNG output stays lossless. Metadata is removed by default, which also clears any location the camera recorded.
Corner mark or diagonal tile?
| Style | Strength | Trade-off |
|---|---|---|
| Corner, low opacity | Discreet, keeps the photo enjoyable | Easy to crop off |
| Center, medium opacity | Hard to remove without obvious damage | Covers the subject |
| Diagonal tile | Covers the whole frame, so cropping can’t escape it | Most distracting; best for proofs and previews |
What a watermark can and can’t do
A visible mark deters casual reuse and keeps your name attached when an image is shared. It isn’t a lock: determined editing can remove a small mark. According to the U.S. Copyright Office (Circular 3), a copyright notice isn’t required for works published on or after March 1, 1989, but a proper notice has three parts: the © symbol, the year of first publication and the owner’s name. Laws differ by country, so treat this as background, not legal advice.
Good to know
- White text with a soft shadow, or dark text with a light outline, stays readable on most photos.
- The preview shows the selected image; glance at a dark and a light photo before exporting a mixed batch.
- Logos with transparent backgrounds (PNG or WebP) look cleanest. A JPG logo brings its rectangle with it.
- Keep the unmarked originals. A watermark can’t be removed cleanly afterwards.
- To hide something rather than label it, use the blur and pixelate tool.
What happens to your files
Processed on your device. Your photos are never uploaded. PixWrench’s code runs on your device. We don’t receive your files, file names or their contents.
Your photos and your logo file are combined inside this tab, and the marked copies are produced on your device; neither is uploaded. Your text, typeface, size and position are remembered in local storage so the next batch matches, but images and logo files are not stored.
Ads and analytics on the page are independent of the watermark tool, as our privacy policy describes.
Related tools and guides
Questions people ask
How do I watermark many photos at once?
Add them all, design the mark on one, and export. The same settings are applied to every image, scaled to its width.
Can I use my logo as a watermark?
Yes. Add the logo image, then set its scale and opacity. A PNG with a transparent background works best.
How do I make a watermark transparent?
Lower the opacity slider. Around a third to a half keeps it visible without hiding the photo.
Can a watermark be removed?
A small corner mark can often be cropped or edited out. A diagonal tile across the image is much harder to remove.
Does adding a watermark reduce quality?
JPG and WebP are re-saved once at quality 92; PNG is lossless. To make files smaller afterwards, use the image compressor.
Should I resize before or after watermarking?
Before is better, so the mark is drawn at the final size. The image resizer handles batches too.
Sources and review
- U.S. Copyright Office: Circular 3, Copyright Notice
- MDN: Image file type and format guide
- jSquash: WebAssembly image codecs (GitHub)
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