Open the PDF in Acrobat DC.
Choose “Organize Pages” > “Split.”
Choose how you want to split a single file or multiple files.
Name and save: Click “Output Options” to decide where to save, what to name, and how to split your file.
Split your PDF: Click “OK” and then “Split” to finish.
Download PDF Split Tool is a very powerful tool to split your oversized file into small files according to your requirements. The advanced utility provides an option to split PDF files by date, size, and message filter option. By using the PDF Split Tool you can easily avoid the risk of file corruption.
Visit here for more info: https://www.osttopstapp.com/pdf-split.html
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Divide PDF files