How to Convert Multiple FITS Images to PSD?
1. Download and Install reaConverter
First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed. Need edits? Resize, rotate, or add watermarks during conversion.
2. Load your FITS files
Launch reaConverter and drop in your FITS files. The software queues everything for batch processing with consistent settings.
Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

3. Select PSD as output format
Pick PSD as output format and choose the destination folder where you want to save new .psd files.

4. Start FITS to PSD conversion
Then simply press the Convert button and your conversion will begin in no time!

Once the conversion is complete, you can find your PSD files in the destination folder you selected.
What changes when you convert FITS to PSD
FITS stores 32-bit greyscale covering the full dynamic range of the scan, and PSD 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. FITS carries 32 bits per channel and PSD carries 16, so tonal steps get coarser during conversion. It shows up first in smooth gradients such as skies. If the result will be edited further, move to a 16-bit format only at the very end.








