Are you trying to for a specific platform?
: Set a "max size" or "aspect fill" to ensure all photos in your project fit specific dimensions for a website or social media feed. How to Process Your "Piece" Photo Batch Processor 3.3.0
I can give you a step-by-step guide for the exact tool you're using. Photo Batch Processor - App Store - Apple Are you trying to for a specific platform
: Drag and drop a folder or import directly from your camera device. Photo Batch Processor 3.3.0
Or were you thinking of a different software, like ?