Direct answer
PDF splitting parses the page tree of a source document and extracts designated page ranges into standalone PDF files or bundled ZIP archives in client-side WebAssembly memory using pdf-lib.
How to use this tool
Upload PDF Document
Drop a multi-page PDF document into the splitting interface.
Define Page Ranges or Selection
Specify individual pages (e.g. 1, 3, 5), page spans (e.g. 2-7), or select 'Split All Pages' to burst every page into its own file.
Export Combined PDF or ZIP Archive
Choose between downloading a single extracted PDF or a ZIP archive containing individual numbered page files.
How Client-Side PDF Splitting and Page Extraction Works
Rather than sending personal contracts, tax filings, or financial statements across the web to external processing queues, our tool parses PDF binaries entirely inside your browser's local sandbox memory. Selected pages are extracted along with their original coordinate spaces, embedded vector fonts, and layout geometries.
- Geometric Fidelity: Preserves original MediaBox, CropBox, bleed bounds, and rotation angles without scaling distortions.
- Dual Extraction Modes: Supports both consolidated sub-documents (single PDF) and burst archives (ZIP of individual pages).
- Memory Guardrails: Automatically preflights files up to 50MB and 500 pages to ensure stable mobile execution.
Practical examples
Extract Signature Pages from 40-Page Agreement
Input: File: commercial-lease.pdf (40 pages), Target Selection: Pages 38-40
Output: Exported: commercial-lease-extracted.pdf (3 pages, containing only the selected signing pages)
Isolates execution pages into a compact document ready for transmission.
Limitations
- Password-protected and DRM-encrypted PDFs must be decrypted prior to page extraction.
- Internal cross-page hyperlinks pointing outside the extracted page range are disarmed.
Frequently asked questions
Can I extract non-consecutive pages like 1, 4, and 9?
Yes. You can enter comma-separated numbers and ranges (such as '1, 4, 9-12') to assemble an exact customized page subset.
Are my documents uploaded to a remote server during extraction?
No. All PDF reading, page separation, and ZIP compression happen directly inside your browser memory on your local device.
Authoritative References & Standards
- ISO 32000-1:2008 Document Management: Portable Document Format (PDF 1.7) ↗ — International open standard specifying PDF binary object trees, MediaBox geometry, and page streams.