How to split a PDF by page ranges

2026-09-17

A page range is two numbers and everything between them: 5-9 means pages five through nine, inclusive. Typing ranges is the fastest way to split a document whose structure you already know — you are writing down the answer instead of looking for it.

Each range becomes one output file. 1-4, 5-9, 10-12 is three PDFs, in that order.

Reading a range list

1-4, 5-9, 10-12

• PDF 1 — pages 1–4 (4 pages)
• PDF 2 — pages 5–9 (5 pages)
• PDF 3 — pages 10–12 (3 pages)

A single page is a range of one: 1, 2-5, 6-12 is also valid and gives three files, the first with one page in it. Spaces make no difference; 1-4,5-9 and 1-4, 5-9 are the same list.

The ranges should cover the document

Splitting divides a document, so the list should account for the whole sequence: start at page 1, end at the last page, and move forward. That is what makes the result a split rather than a selection.

Four things go wrong, and all four are easy to see once you look for them:

• A gap. 1-4, 8-12 on a twelve-page file leaves pages 5, 6 and 7 in no file at all. Either they belong somewhere, or you did not want a split.
• An overlap. 1-5, 5-12 puts page 5 in two files. The result is not wrong so much as untrue: one page pretending to be two.
• A reversed range. 9-5 reads backwards. Splitting never reorders pages, so this is a typo rather than an instruction.
• Out of range. 5-20 on a twelve-page file names pages that do not exist.

Why the preview matters more than the syntax

A range list is arithmetic, and arithmetic is where attention slips. The useful check is not re-reading your own numbers — it is seeing the groups they produce.

Split PDF turns the list into groups on the pages themselves and names the files before it creates them: report-01.pdf · pages 1–4 · 4 pages. An off-by-one range shows up there as a chapter starting on the wrong page, which is much easier to notice than a wrong digit in a text field. Invalid lists are refused with the reason, not silently corrected.

If your pages are not consecutive

Sometimes what you want is pages 2, 7 and 10 — not as three files, but as one new document. That is a different operation: choosing pages rather than cutting a sequence. It is worth knowing which of the two you are asking for, because the words are used loosely everywhere: split versus extract.

For the rest of the basics — where cuts sit, what the outputs are — see how to split a PDF.