If you are looking for the best split tool, I can recommend an excellent application to divide your PDF files into multiple documents. You can use the OSTtoPSTAPP PDF Split Tool, which easily splits large PDFs with zero errors and allows you to split PDFs in bulk. This means you can select multiple PDF files at once. The best part of this tool is that it splits PDFs without any errors and without introducing any viruses or malware. It is very safe to use. It maintains the original format of the file and does not compromise the quality of the PDF. You can easily recover your original file from the application's backup if needed. You can split unlimited PDFs, and there is also a demo version available to try. It supports all Windows, Windows OS, Windows 98, XP, Vista, Windows 7/8/8.1, Windows 10 (32-bit & 64-bit)
Visit here: https://www.osttopstapp.com/pdf-split.html