A single PDF frequently contains several documents that should have been separate: a year of bank statements, a scanned batch of invoices, a bundle of signed contracts, or a textbook where you only need chapter four. Split PDF breaks that one file into the parts you actually need.
You can split by fixed page ranges, extract every page into its own file, or hand the job to AI Smart Split, which reads the text on each page and detects where one logical document ends and the next begins — a new invoice header, a new statement period, a new chapter heading. For a 400-page scanned invoice batch that is the difference between an afternoon of manual work and a two-minute job.
How to use Split PDF
- 1Upload the PDF you want to divide.
- 2Choose your split mode: custom ranges (e.g. 1-12, 13-40, 41-end), a fixed interval (every N pages), or one file per page.
- 3Or select AI Smart Split and let the AI propose document boundaries, which you can review and adjust before committing.
- 4Preview the resulting page groups in the thumbnail strip.
- 5Split and download. Multiple outputs are delivered as a single ZIP archive.
How AI Smart Split decides where to cut
The tool extracts the text layer from each page and looks for repeating document-opening signals: invoice numbers, statement dates, 'Page 1 of N' markers, letterheads and heading hierarchies. It groups consecutive pages that belong to the same document and proposes a boundary before each new one. You always see and can edit the proposal before any file is produced.
Splitting scanned documents
If your PDF is a scan with no text layer, run OCR PDF first. Once the pages carry recognised text, Smart Split can read them and boundary detection becomes far more accurate.
Range syntax
Ranges accept comma-separated values and open-ended ends: '1-3, 7, 10-end' produces three files. Pages can be listed in any order and the tool sorts them for you.
Supported formats, limits and things to know
- Encrypted PDFs need unlocking first.
- Outputs above a handful of files are zipped automatically by your browser.
- AI Smart Split needs a text layer — image-only scans should go through OCR first.
- Very large documents (1,000+ pages) split fine but may take a few seconds to render thumbnails.
Split PDF — frequently asked questions
How do I split a PDF into individual pages?
Choose the 'one file per page' mode. Every page becomes its own PDF and the whole set downloads as a ZIP archive.
Can I split a PDF without losing quality?
Yes. Splitting copies the original page objects, so text stays selectable and images keep their original resolution.
What is AI Smart Split?
It reads the content of each page and automatically detects where separate documents begin, so a merged batch of invoices or statements can be separated without you specifying page numbers.
Does the split file keep the original bookmarks?
Bookmarks pointing to pages inside a given output file are retained; bookmarks pointing outside that range are dropped because their targets no longer exist.
Is there a page limit?
No server-side limit. Because processing is local, the practical ceiling is your device's available memory.