How to Convert Multiple GEOTIFF Files to AVIF?
1. Download and Install reaConverter
reaConverter is a standalone Windows app — download, install, and start converting GEOTIFF files in under two minutes.
2. Load your GEOTIFF files
Open reaConverter and import your .geotiff files. No file limits, no slowdowns. Add as many as you need.
Drag files into the window, use the Add Files button, or select entire folders.
3. Select AVIF as output format
Select AVIF as target format and pick where to save results. You can keep default settings or fine-tune the output.
4. Start GEOTIFF to AVIF conversion
Hit Convert to process your files. The log window shows progress, timing, and status for every file.
Conversion complete? Your AVIF files are saved to the destination folder, ready to use.
Before you convert GEOTIFF to AVIF
GEOTIFF 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 AVIF afterwards will not recover the sharpness. Set the output dimensions or DPI before converting, not after. GEOTIFF carries 16 bits per channel and AVIF carries 12, 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 12-bit format only at the very end.
