PhotoDemon is a portable and relatively small – less than 17MB unzipped – image editor which happens to be open source too. Most, if not all, features expected when working with images are present here. Plus there is also a Batch process mode available via the File menu (or Ctrl+B). A film strip area shows all open images.
PhotoDemon can import directly from the clipboard, cameras and scanners and also from URLs. Mouse and keyboard shortcuts for zoom make it easy to view details. The Image menu features most of what is expected like Resize, Crop, Rotate, and Flip plus