How to Split a PDF (Pages, Ranges, Every N Pages)
Splitting a PDF sounds like one thing and turns out to be five. The right split depends on what decides where the cuts go: page numbers you know, a fixed size, the document's own structure, or the text on the page. Our toolkit has a separate tool for each — here is how to pick.
When you know the page numbers: split by ranges
The classic. Split PDF takes ranges like 1-3, 4-8, 9 and returns one document per range, zipped together. A 60-page report cut into chapters, or one scanned file separated into its invoices, takes one pass: type the ranges, download the zip.
When every section is equal: split every N pages
Forms, tickets and sheets that repeat on a fixed rhythm are better served by Split every N pages — set the step to 2, 10 or 50 and every equal run becomes its own file, without typing a single range.
When the document knows better: bookmarks and text
Well-made PDFs carry their own table of contents. Split by bookmarks follows that outline — each chapter at the level you choose becomes a file with the right name. If the structure lives in the text instead, Split by text finds markers like Invoice or Chapter and cuts before each occurrence, with a preview so you can check the matches first.
When a website says “file too large”: split by size
Upload limits count kilobytes, not pages. Split by size packs as many pages as fit under a KB ceiling into each part — the reliable way to get a big scan past a stubborn form. For a genuinely oversized file, compress it afterwards and the parts get smaller still.
Two-page scans
One more case worth knowing: a single scan sheet holding two pages side by side. That is not a page-range problem, it is geometry — Split in half cuts the sheet down the middle and resequences the halves into single pages in reading order.
A quick way to choose the split
- Known page numbers? Split by range.
- Fixed-length sections? Split every N pages.
- A real PDF outline? Split by bookmarks.
- Markers in the printed text? Split by text.
- An upload-size limit? Split by size.
- A two-page scan on one sheet? Split in half.
Choosing by the thing that decides the cut is faster than trying a page range and repairing the result. It also keeps the part names meaningful, because the tool can take them from the structure instead of a generic number.
Names, folders and the ZIP
A split is only useful if the parts can be found again. Use the file-name pattern to include the original basename and the part number, unzip into a folder named after the source document, and avoid a shared downloads folder where two splits can overwrite each other. If the ranges correspond to chapters, rename the parts with the chapter titles after splitting — a small investment that saves ten minutes every time somebody looks for the right file.
Check before deleting the source
Open the first and last part, compare the page counts with the ranges, and check the contents panel in one part if the original had bookmarks. Keep the source until the parts have been opened and accepted. Splitting makes copies; the original is your only recovery path if a range was off by one. The full split guide covers the five methods in more detail.
Try it: Split a PDF — your upload is never modified, and every file is deleted automatically after two hours.