Hello, as you know many users do not know how to separate a PDF document in batch. In such a situation, I recommend the best and most secure program that helps you to divide a PDF file using a batch process i.e., the SameTools PDF Pro Software. All of the features needed to split, merge, lock, and unlock PDF files are contained in one software. Moreover, it watermarks and changes PDFs into pictures. This program splits any large PDF files into multiple PDF files. This utility adds images to PDF documents. No restrictions on the PDF file size under this application This tool is compatible with all Windows editions.