The two ways to split a PDF
Range mode is the right pick when you want one specific section out of a larger PDF — say, the appendix from a 200-page report, or three particular pages from a scan. Type the pages you want as a comma-separated list (e.g. 1-3, 5, 7-10), and the output is a single PDF containing just those pages, in the order you listed them.
Per-page mode is the right pick when you want to break a PDF into atomic files — every page becomes its own PDF. Browsers can't reliably trigger many simultaneous downloads, so all the per-page PDFs are zipped together for a single download.
Page-range syntax
Whitespace is ignored, so 1-3, 5, 7-10 and 1-3,5,7-10 are equivalent. Out-of-range pages are silently clamped. Reversed ranges like 10-7are treated as 7-10. Duplicate pages are de-duplicated and the result is ordered low-to-high — so the output is always coherent.
Privacy
Splitting runs entirely in your browser. Even a 500-page PDF stays on your device — the only network traffic on this page is loading the tool itself.