How to Convert Multiple PLT Files to FITS?
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.
2. Load your PLT files
Launch reaConverter and load the PLT files you want to convert. Add a few files or thousands, batch processing handles them all.
Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.

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

4. Start PLT to FITS conversion
Start the conversion with one click. reaConverter handles everything and notifies you when it's done.

When the batch finishes, your FITS files are ready in the destination folder you chose earlier.
PLT to FITS: what to expect from the conversion
PLT describes geometry rather than pixels, so it has no inherent resolution. The conversion renders it at whatever size you choose, and that choice is final: enlarging the FITS afterwards will not recover the sharpness. Set the output dimensions or DPI before converting, not after.








