uMark vs wmk
| uMark | wmk | |
|---|---|---|
| Platforms | macOS, Windows | Linux, macOS, Windows |
| Free plan | Yes | |
| Batch watermarking | Yes | Yes |
| Logo marks | Yes | Yes |
| Watermark presets | Yes | |
| Supported platforms | Windows and macOS | Windows and Linux |
| API access | Yes |
Listed together in Best Photo Watermarking Software