What program do you recommend for batch processing images?

Question

Images

It is necessary that the program be free and be able to overwrite image files inside the directory. Those. as the path to the images, a directory is specified that contains several subfolders with photos. The processed photos should remain in the same folders instead of the original ones.
The functionality requires the imposition of a watermark in the form of text (there should be a simple text editor), as well as resizing the size while maintaining proportions.
From what I tried, nothing worked: ImageBatch, Image Tuner, ImBatch, FastStone Image Viewer.

Answer 1

I came across Easy Image Modifier
www.inspire-soft.net/software/easy-image-modifier#...
It seems to do everything I need

Answer 2

Imagemagic + python as needed?

Answer 3

Fast Stone Image Viewer

Answer 4

I didn’t understand a little what you meant about nested folders, but I myself used IrfanView - a completely customizable tool. If you can't figure it out, Google will help =)
If you know how to program, then ImageMagick or the like will do.