Is there an automatic method that will take pictures from one folder, reduce them and save them to another?

Question

Image processing

Is there some kind of script (library) PHP, python or any other automatic method that takes images from one folder and saves to another with a lower resolution in jpeg format?

Answer 1

can be done in IrfanView .
Manual with screenshots, for example, here .

Answer 2

You can look in the direction of Gulp, which runs on nodejs, works with pictures quickly, you can set up a watch plugin that monitors changes in a folder and runs a script. I think you will like it.