How to Convert Multiple FIT Images to GIF?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting FIT files in under two minutes. You can also resize, crop, and adjust images during conversion.
2. Load your FIT files
Add FIT files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.
You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

3. Select GIF as output format
Select GIF from the output format list and set your destination folder. You can also adjust quality and compression settings.

4. Start FIT to GIF conversion
Click the Convert button to start. reaConverter will process all your files with the settings you selected.

When finished, your new .gif files will be waiting in the destination folder.
FIT to GIF: what carries over and what does not
FIT stores 32-bit greyscale covering the full dynamic range of the scan, and GIF shows 8 bits. The conversion applies a window level, so what ends up visible depends on the window you choose. Decide separately whether patient metadata should be copied to the output or stripped from it. GIF stores a limited palette rather than full colour, so the conversion has to reduce the number of distinct colours. Photographic content shows this as banding, while flat graphics and icons usually survive it untouched.









