If you want to separate your PDF files, I've searched the most well-known app called OSTtoPSTAPP PDF Split Tool here. It takes a few seconds to break your PDF file. It's simple to utilise this programme. This programme can be used by both technical and non-technical users. It helps to display the preview of PDF files to users. All Windows OS versions, including XP, Vista, 11, 10, 8.1, 8, and 7 were supported. The PDF file is split using this programme without altering the data.
Methods to Split PDF files:-
1-Install the PDF Split Tool
2-Click the Browse button after choosing a PDF documents
3-Click the Browse button after selecting the file location
4-Choice the number from the PDF file
5-Click the Split PDF Now button to finish