IrfanView: Batch Operations on Images

The ImageMagick basket of command-line tools can be used to do almost anything to a set of image files. But, sometimes figuring out the options to pass the tool can be too much work for a small batch operation. IrfanView, (still) the best image viewer on Windows is the next best tool for such quick operations.

• Choose File → Batch Conversion / Rename to apply batch operations.

• Rename files. All sorts of numbering can be added as prefix or suffix to the files.

• Crop, resize, rotate, flip or almost anything imaginable can be applied on the files.