When you have thousands of photos in your collection, any task that you want to perform on them becomes such a huge amount of work that you never really find the time to do it.
This is when EvJO Photo-Image Resizer comes in handy. With this tool you'll be able to massively resize as many photos as you want at the same time, plus performing other tasks such as renaming them, converting them to another format or removing their EXIF data. Images can be resized according to some default or presets or your own custom size.
The program also enables you to work with single files, in which case it includes some advances options to rotate or flip the image, adjust its color and brightness levels or even add a frame to it. It's a pity these advanced options are not available when working with multiple images.
Resize, rename and convert multiple photos at the same time without all the hassle.