Are you trying to for a specific platform?
I can give you a step-by-step guide for the exact tool you're using. Photo Batch Processor - App Store - Apple Photo Batch Processor 3.3.0
: Drag and drop a folder or import directly from your camera device. Are you trying to for a specific platform
: Choose your mode (e.g., Resize, Watermark, or Rotate). Photo Batch Processor 3.3.0
: You can "create a piece" of branded content by applying text captions or PNG watermarks with adjustable transparency to hundreds of photos.