You can split a PDF document into several separate PDF files. You can do this in a few ways. You can split a PDF document into page ranges, split each page from a particular file into a new PDF document, split odd pages and split even pages. The original document will not be altered.

Go to the Tools tab and click Split PDF. A new window will open. Click Browse to select the file you want to split. Then select one of the split options.

Split into page range
Split into files of X pages
Split odd pages
Split even pages

You can use the built-in PDF viewer to navigate in the PDF.

Click Split.