Watermark
Stamps text or a logo across images with position, opacity, tiling and batch application.
A mark stamped into the pixels, so it travels with the file. The two decisions that matter are whether it sits in a corner or tiles across the whole frame — one is polite and croppable, the other is the version that actually survives — and how large it is relative to the image rather than in fixed pixels.
Drop the photo to watermark
Text or a logo, once or tiled. Runs in this tab.
How to use it
Choose text or a logo
Text is typed here; a logo is dropped in and scaled to the mark height in linear light. A PNG with transparency works best.
Size it as a percentage
Of the shorter side. A fixed pixel size is a slab on a thumbnail and invisible on a 6000px photo, and a batch through one setting comes out inconsistent.
Decide: corner or tiled
A corner mark is unobtrusive and comes off with a crop. Tiling with a stagger is what makes a screenshot genuinely awkward to reuse.
Keep the outline on over photographs
A pale mark over a pale sky is invisible without one. It is stroked at double width first and filled over the top, because stroking after the fill eats half the glyph.
Common questions
Why is my font not being used?
The mark is drawn in a worker, which has no document and therefore no access to this page’s webfonts. Only fonts installed on the operating system resolve, which is why every stack offered here ends in a system fallback.
Can a watermark be removed?
A corner mark, easily — crop it off. A tiled semi-transparent mark, not without visible damage, because it is mixed into every part of the picture. Neither is a security measure; it is an attribution measure.
It says the mark is too small to read.
The percentage you chose resolves to a handful of pixels on this image. That is worth saying before you export forty files with an illegible mark on them rather than after.
Feed it from
PDF Watermark
Overlays text or an image watermark on every page with angle, opacity and layer position.
Video Watermark
Overlays a logo image or a line of text at one of nine anchors with margin, size, opacity and an optional time window.
PNG Compressor
Quantises the palette and rewrites the deflate stream to shrink a PNG without changing its dimensions.
JPEG Compressor
Re-encodes a JPEG at a chosen quality with a live before/after size and a difference view.
Next
These accept what this tool produces, so the result can go straight in.
Image Resizer
Resizes by pixels, percentage or a target longest edge, with aspect-ratio lock and batch presets.
PDF Watermark
Overlays text or an image watermark on every page with angle, opacity and layer position.
PNG Compressor
Quantises the palette and rewrites the deflate stream to shrink a PNG without changing its dimensions.
Video Watermark
Overlays a logo image or a line of text at one of nine anchors with margin, size, opacity and an optional time window.
Background Remover
Keys out a flat or single-colour background in OKLab and returns a transparent PNG, with a brush for fixing the edges.
EXIF Remover
Strips camera, GPS and editing metadata from photos while leaving the pixels untouched.