Visible and hidden watermarks
A visible watermark sits on top of the picture, usually a logo, handle, or copyright notice placed with enough opacity to identify the source without blocking the content.
A hidden watermark embeds a signal in the pixels themselves, invisible to the eye but readable by software. The mark can survive modest edits, which helps trace leaked copies.
Why watermarks are used
Creators use them to discourage uncredited reuse and to keep attribution attached as an image travels between sites. Stock libraries and news agencies rely on them heavily.
The trade-off is visible damage to the picture. A heavy mark can ruin composition and sharpness, and any visible watermark can sometimes be cropped or painted out.
- Credit a photographer or studio across shared images
- Mark drafts and previews before a client approves them
- Keep branding attached to graphics posted publicly
- Embed hidden signals when tracing copies matters
Watermarks and Filekind
Filekind does not offer a watermark tool today. The available tools convert, resize, compress, and build or split PDFs, and none of them overlay text or logos.
Add the mark in an image editor or design tool first, then use Filekind for the rest of the pipeline. Everything runs in the browser, so the marked file is never uploaded. Keeping the overlay in the source file also makes it easy to swap sizes later without rebuilding or repositioning the mark each time.