Watermark Image
Add a copyright line or a transparent PNG logo to one photo or a batch, in a corner or tiled across the image, with opacity and rotation. Nothing is uploaded.
The interactive tool loads here when JavaScript runs.
About this toolWhat is the Watermark Image tool?
Type a line such as "© 2026 Jane Smith" or load your logo, choose where it goes and how strong it looks, and the watermark is drawn on every photo you add. Download the picture you are looking at, or all of them in one ZIP file.
The mark is sized as a percentage of each image, not in fixed pixels, so a batch that mixes 6000-pixel camera files and 1080-pixel phone exports gets watermarks that look the same. Place a single mark in any of nine positions with a margin from the edge, or repeat it diagonally across the whole picture so it cannot be cropped away.
The photos stay on your device. They are drawn and encoded by your browser, and the saved files contain no EXIF metadata from the originals.
- Text or logo watermarks with opacity and rotation
- Nine anchor positions with an adjustable margin
- Diagonal tiled pattern that covers the whole image
- Size relative to each image for consistent batches
- Contrast outline that keeps text readable on any background
- Batch ZIP download; processed in your browser, no upload
How to use the Watermark Image tool
- Add your photos by choosing them or dropping them on the box. A sample photo is shown until you do.
- Choose Text and type your line, or choose Logo image and load a PNG or SVG with a transparent background.
- Set the size (text height as a percentage of the shorter side, or logo width as a percentage of the image width), the opacity and the rotation.
- Choose One mark and click a position on the 3 x 3 grid with a margin, or Repeat across image and set the gap between repeats.
- Pick PNG, JPEG or WebP and download this image or all images as a ZIP.
Worked examples
Same look on different sizes
Input
Text height 5% on a 4000 x 3000 photo and on a 1000 x 750 photo
Output
150 px text on the large photo, 38 px on the small one
Both are 5% of the shorter side, so the mark covers the same share of each picture.
Corner logo
Input
2000 x 1000 photo, 500 x 250 logo at 20% width, bottom right, 3% margin
Output
400 x 200 logo placed 30 px from the right and bottom edges
The logo keeps its own aspect ratio; the margin is 3% of the 1000 px short side.
Preview protection
Input
Repeat across image, -30° rotation, 30% opacity, 8% gap
Output
Diagonal rows of text covering the whole photo, offset like brickwork
The pattern extends past the image diagonal so rotated rows still reach every corner.
Background and insight
A visible watermark is a deterrent and a credit line, not a lock. A small mark in a corner survives casual sharing but can be cropped off in seconds; a semi-transparent pattern repeated across the image is much harder to remove cleanly, at the cost of hiding more of the photo. Stock libraries use the tiled approach on previews for that reason, while portfolios usually prefer a discreet corner mark.
Legally, copyright protection does not depend on a watermark: in the US and the other countries of the Berne Convention a photo is protected from the moment it is fixed, with no notice or registration needed. A watermark helps people find you to ask permission, and under 17 U.S.C. 1202 removing copyright management information such as an author name or notice, knowing it will conceal infringement, is a separate violation, with statutory damages under section 1203 of $2,500 to $25,000 each.
Legibility comes from contrast against a background you do not control. The optional outline draws a thin dark stroke around light text (or a light one around dark text) so the mark stays readable over both sky and shadow. Opacity between 40% and 70% is a common compromise for corner marks; tiled marks are usually lighter, around 20% to 35%, which is what the tool switches to when you choose Repeat across image.
Common use cases
Photographers and artists
Credit your work on portfolio pages and social posts so reposts still point back to you.
Client proofs
Send tiled, low-opacity proofs before payment, then deliver clean files.
Online shops and listings
Brand product photos for marketplaces and classifieds so copied listings carry your shop name.
Documents and IDs you share
Stamp "Copy for rental application only" across a scan of an ID or bill to discourage reuse.
Tips and limitations
- Place a single mark over part of the subject, not in an empty corner, if you want it to be hard to crop out.
- Use a logo with a transparent background. A white rectangle around a logo looks like a sticker and hides more of the photo.
- Keep originals. A watermark is baked into the pixels and cannot be removed from the saved file later.
- Check the result at the size people will see it. A mark that looks right on a desktop preview may be unreadable on a phone.
- JPEG is best for photos; choose PNG if you need transparency preserved in the source image.
- A watermark does not stop AI training scrapers or determined editors. Treat it as attribution and deterrence.
Frequently asked questions
How do I add a watermark to many photos at once?
Select all the photos, set up the watermark once while previewing any of them, then press Download all to get a ZIP with every photo marked the same way.
What opacity should a watermark be?
For a corner credit, 40% to 70% is readable without dominating the picture. For a tiled anti-copy pattern, 20% to 35% keeps the photo viewable while making clean removal difficult.
Where is the best place to put a watermark?
Corners look tidy but are easy to crop. Over part of the subject or as a repeated pattern is harder to remove. Choose based on whether you want credit or protection.
Can I use my logo as a watermark?
Yes. Choose Logo image and load a PNG, WebP or SVG. Transparent backgrounds work best. Set its width as a percentage of each photo.
Does a watermark protect my copyright?
Your copyright exists without it. A watermark makes ownership visible, and in the US removing copyright management information to hide infringement is a separate violation under 17 U.S.C. 1202. It does not physically prevent copying.
Are my photos uploaded to a server?
No. Watermarking runs entirely in your browser and the files never leave your device.
Can a watermark be removed later?
Not from the saved file; it is part of the pixels. Keep your unmarked originals if you may need clean copies.
Is there an in-depth guide to the Watermark Image tool?
Yes. “How to Watermark Photos: Placement, Opacity and What It Really Protects” covers the background, how it works, common pitfalls and worked examples. Read the full guide.
People also search for
- add watermark to photos free online
- batch watermark photos without software
- add logo watermark to pictures
- tiled diagonal watermark across image
- transparent text watermark on photo
- watermark product photos for etsy
- add copyright symbol to photo
- watermark many images at once
Related Tools You May Like
Free, in-browser tools that pair well with this one.