Free, runs entirely in your browser — no sign-up, no file upload to a server.
What does Add Watermark do?
It overlays custom text onto a photo — choosing position, size, color, opacity, and whether it repeats as a tiled pattern — then lets you download the watermarked PNG.
Can I add an image or logo as a watermark?
Not currently — this tool applies a text watermark only. If you need a logo overlay, you could layer it in manually first using an image editor, then use this tool for text.
Which output format do I get?
The watermarked image downloads as a PNG, regardless of the source format.
Where is my image processed?
Locally, via the Canvas API — your photo is never uploaded anywhere.
What should I do if the watermark text doesn't appear correctly?
Check the opacity and color settings aren't making it blend into the background, and confirm the font size isn't set too small for the image dimensions.
How do I report a problem or request a feature for this tool?
Use the Contact / Feedback page — select "Add Watermark" as the related tool so we know exactly which tool you mean, then describe the bug or the feature you'd like to see.