Free tools
Pick a tool — your files stay in your browser unless you choose cloud processing.
Add text or logo to a single image. PNG, JPEG, WebP, AVIF.
Stamp short clips with a permanent overlay. MP4, MOV, WebM.
Stamp every page of a document without flattening text.
Apply the same watermark to dozens of images in one go.
Queue many videos to render in parallel on our workers.
Stamp folders full of legal documents at once.
Hit the same engine from your code. One endpoint per format, works from any language with HTTP.