About this tool
A watermark puts your name or logo on a photo so that copies carry credit back to you. This tool adds either a line of text or a logo image to a whole batch of photos, with control over size, opacity, position and margin, plus a tile option that repeats the mark across the picture.
A live preview on the first photo shows the result before you apply it. Text size and logo size are measured as a share of image width, so the mark looks the same on a small photo and on a large one. Photos are processed in your browser and are never uploaded.
How to use the Image Watermark
- 1Add one or more JPG, PNG, WebP, GIF, BMP or AVIF photos.
- 2Choose Text and type your mark, or choose Logo and add a logo image.
- 3Set the size and opacity, then pick one of nine positions or turn on tiling.
- 4Choose the output format and check the preview on the first photo.
- 5Click Apply, then download single files or the ZIP of watermarked photos.
Features
Text or logo marks
Type a line of text with a color and an optional soft shadow, or add a PNG, JPG, WebP or SVG logo.
Nine positions
Pin the mark to any corner, edge or the center, with a margin measured as a share of image width.
Diagonal tiling
Repeat the mark across the whole photo at an angle, which is much harder to crop out.
Size that scales
Sizes are relative to image width, so one setting suits photos of every resolution.
Batch output
Apply the same mark to every photo and download them one by one or as watermarked-images.zip.
Frequently asked questions
Will the watermark change my original files?
No. Your originals stay as they are. The tool saves new files that carry a -watermarked suffix in their names.
Does a watermark stop people copying my photos?
It does not prevent copying, but it makes reuse without credit easy to spot. A tiled mark is much harder to remove than one in a corner.
Which output format keeps the best quality?
PNG keeps every pixel but makes larger files. JPG and WebP are smaller and have a quality slider. Same as input keeps each photo in its own format.
Are photos rotated by the camera handled correctly?
Yes. The orientation stored in the photo is applied when it is read, so the mark lands on the upright picture.
Are my photos uploaded to apply the mark?
No. Each photo is read, drawn on a canvas and saved by your browser, so nothing is sent to a server.