How to add a watermark to an image
A photographer credit, a DRAFT label on a proof, an ownership mark on a shared image — a watermark takes seconds here. Add the image, type the text, choose where it sits, and download the stamped copy.
Step by step
Open the image watermark tool
Start the free tool — it accepts JPEG, PNG, WebP, or AVIF images up to 50 MB.
Add your image
Drop in the photo you want to mark; it never leaves your device.
Type your watermark text
Enter a single line such as a copyright notice; long text is automatically scaled down to fit within 88% of the image width.
Choose position, size, color, and opacity
Pick top left, top right, center, bottom left, or bottom right, set the size between 8 px and 500 px, and adjust opacity from 5% to 100%. A dark outline keeps the text legible on any background.
Download the watermarked image
Export as WebP, JPEG, PNG, or AVIF — dimensions stay exactly as they were.
Tips that save a second try
The defaults — bottom right at 55% opacity — stay readable without hiding the photo.
The watermark is flattened into the pixels: keep an unwatermarked master, because the exported copy has no editable layers.
One line on one image per run — for tiled patterns or logo files, repeat with different text or use dedicated design software.
Common questions
Does adding a watermark change the image dimensions?
No. The output uses the source width and height — only the pixels and the file encoding change.
Is a flattened watermark tamper-proof?
No. It discourages casual reuse, but a determined editor can crop or retouch it. Treat it as a visible claim of ownership, not a lock.