PDF Split

What is PDF Split?

Split one PDF into several smaller PDFs, either at fixed page intervals (every 1, 2, 5, or N pages) or at specific page numbers you define. Perfect for breaking a long scan into per-chapter files, turning a multi-receipt export into individual receipts, or hitting an upload system's page limit without losing anything.

How do I use PDF Split?

1. Drop a PDF onto the upload zone.
2. Choose "Every N pages" and set the chunk size, or "At specific pages" and list page numbers to split on.
3. Click Split.
4. Download each part individually.

PDF Split by the numbers

Engine

pdf-lib, in-browser

Modes

Every N pages, specific pages, range set

Max per file

100 MB

Output bundle

Multi-file ZIP download

Privacy

File never leaves browser

Common use cases for PDF Split

• Isolating page 3 of a signed contract to email separately.
• Breaking a 200-page manual into 20-page chapters.
• Extracting the certificate page from a long government form.
• Splitting a scanned book into one-chapter PDFs.
• Making a 1-page excerpt for a forum post from a longer report.

Common pitfalls and how to avoid them

• Range "2-5" produces pages 1-4 instead — Page numbers are 1-indexed. 2-5 means pages 2 through 5 inclusive — check that the source matches your expectation.
• Bookmarks are gone from the split files — pdf-lib does not carry document-level bookmarks. Re-add them with a desktop editor if critical.
• Output PDFs are huge — Each split keeps the full font/resource table. Run the results through PDF Compressor to slim them.

When should I use PDF Split?

Use PDF Split to break one file into many. To pull out just certain pages (keeping them as one file), use PDF Extract Pages. To drop specific pages, use PDF Remove Pages — both are single-output shortcuts for common workflows.