How to Convert Multiple TIFF Images to AVIF?
1. Download and Install reaConverter Lite
reaConverter Lite is quick to download, easy to install, and ready to launch in seconds. This lightweight, standalone software is highly efficient at handling a wide range of batch image conversions. Plus, it lets you apply essential image editing options — such as resizing, rotating, or adjusting quality — during the conversion process.
2. Load your TIFF files
Launch reaConverter and load the TIFF files you want to convert. Add a few files or thousands, batch processing handles them all.
Drag-and-drop TIFFs directly into reaConverter or use the folder browser to load entire directories.

3. Select AVIF as output format
Set AVIF as output format and select where to save your converted files. Customize quality settings if needed.

4. Start TIFF to AVIF conversion
Press Convert to begin processing. You can watch the progress or minimize and let it run in the background.

Your converted AVIF files will appear in the destination folder as soon as processing completes.
What changes when you convert TIFF to AVIF
TIFF 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. TIFF files are often prepared in CMYK for print, and AVIF is an RGB format. Colours are converted between the two spaces during the run, and saturated print colours can shift visibly. If the output is heading back to print, keep an untouched copy of the original.






