Export as New Files
Resizing images one at a time in order to upload them to Facebook, Instagram, or another social media site is one technique that works well for a few images at a time. But if you have a lot of material you'd like to resize, and need it done fast, the Organizer's Export New Files tool might be your best option.
It has many advantages. You can export a lot of images to a specified location, add a common name to all exports, change the file format, and even choose a specific image dimension. It takes around 2 minutes to export 200 images—so it's fast.