What is PDF splitting?

PDF splitting divides a single PDF file into smaller documents by extracting individual pages, custom page ranges, bookmarks, or chapters. It is used to share only relevant sections, separate scanned batches into per-document files, and shrink large multi-chapter manuals into easier-to-distribute parts.

Split PDF Online Free

Split a PDF into separate files or extract specific pages in under 10 seconds. Free, unlimited use, no signup, no watermark. 200MB+ file support.

About Split PDF

Split PDF lets you break a large PDF into smaller pieces — by page range, by individual pages, or every N pages. What makes ours different is the output options: you can pull out a single range as one PDF, export every page as its own file, or get a ZIP archive containing all the split pieces. We built a native ZIP encoder (CRC32, local headers, central directory, EOCD) directly into the tool so there's no external JSZip dependency — it's faster and the download kicks off the instant splitting completes.

Splitting runs client-side via pdf-lib, so even 500-page documents process in a few seconds without uploading. The page selector has a visual grid view showing thumbnails of every page, and you can click-select or drag-select ranges the way you'd select files in a file manager. The range parser also accepts complex expressions like "1-3, 5, 7-9, 12" so you can pull out a specific subset in a single operation instead of splitting repeatedly.

How to Use Split PDF Online Free

  1. Step 1: Drop your PDF into the drop zone. The tool renders a thumbnail grid of every page in a few seconds.
  2. Step 2: Pick a split mode: Range (pull out pages 5-12), Individual (every page = new file), or Every-N (auto-split every 10 pages)
  3. Step 3: Click or drag-select the pages you want. Or type a range expression like "1-5, 10, 15-20"
  4. Step 4: Choose output format: single merged PDF of the selection, individual files, or ZIP archive
  5. Step 5: Click Split — processing is near-instant for documents under 200 pages. The ZIP or files download immediately.

Key Features

How We Compare

Compared to desktop alternatives like Adobe Acrobat Pro (starting at $19.99/month), Smallpdf ($12/month for unlimited), or iLovePDF ($9/month Premium), PDF AI Tools delivers comparable quality at $0 for the core feature set. We skip the subscription friction by processing most operations directly in your browser with WebAssembly — no server infrastructure costs to pass on to users. Our AI features (summarization, chat, OCR) use a pay-as-you-go backend that keeps your total cost well under $5/month even for power users.

Frequently Asked Questions

Can I extract specific pages instead of a continuous range?

Yes. The range parser accepts "1-3, 5, 7-9, 12" — so you can pull out pages 1 through 3, page 5 alone, pages 7 through 9, and page 12 in a single operation. The extracted pages stay in the order you list them, so you can also reorder while extracting.

What's the difference between "Individual" and "ZIP" output modes?

Individual mode gives you N separate downloads (one per selected page) — good if you only want 2-3 pages. ZIP mode packs everything into a single .zip archive and triggers one download — much better for 10+ pages because your browser won't block sequential downloads or hit download cap prompts.

How do I split a PDF every 10 pages automatically?

Pick the "Every N pages" preset at the top and type 10. The tool creates N output files where each contains the next 10 pages in sequence. Works for any N — useful for splitting long reports into chapter-sized chunks.

Are form fields and annotations preserved in the split files?

Yes. pdf-lib copies page objects directly, so fillable form fields stay fillable, sticky notes remain interactive, and hyperlinks still work in each split output.

Can I split a password-protected PDF?

Only if you can open it in a standard PDF viewer. Encrypted PDFs need to be unlocked first — run it through our PDF Unlock tool, then split the unlocked copy.

What's the largest PDF this can handle?

Successfully tested on 500 MB and 1000-page documents in Chrome on a typical laptop. On phones or older devices, stay under 100 MB to be safe — the grid view renders every thumbnail which uses RAM. Use the "Range" input (skip grid) for faster processing on huge files.

Who Uses This Tool