Process multiple folders and leave output in original folder

[Ewek1]

I want to process multiple folders and have the output replace the original file in these folders. I don't want to specify the output location for each folder one by one. Is this possible?

[xnview]

I want to process multiple folders and have the output replace the original file in these folders. I don't want to specify the output location for each folder one by one. Is this possible?

Will be added in next release

[Ewek1]

Pierre-
I was wondering if this feature was ever implemented?

[foxyshadis]

Sure, it's pretty simple. You first open batch convert, add your folders, check "use original path as output" and set overwrite to "replace". Make sure you've got the right format, set your transformations/script, and go; all existing images will be replaced, except those in a different format.