ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Pingo - Optimize images for the web quickly 🖼️⚡
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Presentii - Imagine a tool that lets you capture audience interest in your presentation content as you present.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
SlideLizard - Powerpoint plug-in for live audience interaction