For many users it is: one window for add folder, resize rules, destination, and Start. It supports presets, aspect ratio lock, smart crop, and multi-core processing without opening each file by hand.
Yes. Windows 7 (32-bit and 64-bit), 8, 10, and 11 are listed in the system requirements. Use the 64-bit installer on a 64-bit OS for best performance on large images.
The program resizes JPEG, PNG, BMP, TIFF, GIF, WebP, and RAW formats among others. This how-to focuses on JPG; the same steps apply after you add those files.
Making an image smaller discards pixels; that is expected. Export at a high JPEG quality (85-95) to limit visible artifacts. Avoid re-saving the same JPG many times; keep a master copy and resize copies for web or email.
Batch size, privacy (files stay local), no upload limits, and repeatable settings for whole folders. Websites fit occasional one-off conversions; desktop tools fit libraries and repeat workflows.