Image watermarking only works with JPG (*.jpg/*.jpeg) and TIFF (*.tiff) images. See below for the full details.
All file extensions must be in lowercase.
JPG (*.jpg/*.jpeg)
The chief advantage of JPGs is that they support a high-quality image in a relatively small file size (Rezolve watermarking has a file size limit of 150MB). When working with JPG files, try to use minimal compression when saving the image – 100% quality works best.
Advanced image details:
| Supported Bits (per channel) | 8 or 16 (8 preferred) |
| Supported Color Models (more info) | RGB only |
| Supported Compression Methods | Baseline/Standard Baseline Optimized Progressive |
TIFF (*.tiff)
TIFFs are often a lot bigger (in terms of file size) than JPG files, but they have the advantage of supporting the CMYK color model, which is used by commercial printers.
Advanced image details:
| Supported Bits (per channel) | 8 only (16 or 32 are not supported) |
| Supported Color Models (more info) | RGB or CMYK |
| Supported Compression Methods | LZW (recommended) ZIP None |
| Supported Pixel Order | Interleaved Per Channel |
| Supported Byte Order | IBM PC Macintosh |
| Layer Compression | Discard all layers (in order to ‘flatten’ the image) |