Question

How Hot Folder understands what files have been processed? Will it process all files from the input folder or only newly added?

Answer

Hot Folder is a scheduling agent that allows you to select a folder with files that ABBYY FineReader should process automatically.

Hot Folder keeps the information about already processed documents, so they won't be processed again.

The information about already processed files is kept here: %localappdata%\ABBYY\FineReader\15\HotFolder\%taskname%.ppi