XnView Software

@JuanMi73: See my edit above, I have made the suggestion.


Thanks cday :)


Edit: I have been able to do it with nconvert and batch file.
All my images in png to webp adding a "background.webp"
Thanks again!!



@echo off
cd %~dp0
for %%x in (*.png) do (
nconvert -quiet -overwrite -wmopacity ...

Hello.

Is it possible to create a batch process to add a custom background to multiple pngs?

Thanks!!

.