What Is a PDF Splitter?
A PDF splitter is a tool that divides one PDF document into multiple smaller files, based on page ranges, a fixed page count per file, or manually selected pages. This is the inverse of merging — instead of combining documents, you're breaking a larger document apart into more manageable, shareable, or organized pieces.
Browser-based PDF splitters like this one process your document entirely on your device using the pdf-lib JavaScript library, meaning your files are never uploaded to a remote server. This makes them ideal for splitting confidential business documents, legal contracts, financial records, or scanned files without privacy concerns.
Choosing the Right Split Mode
Custom Ranges
Best when you need specific, named sections — like splitting a report into chapters or a contract into exhibits with distinct labels.
Split Every N Pages
Best for evenly dividing long documents into equal chunks, such as splitting a 100-page scan into ten 10-page files for easier upload.
Every Page Separately
Best when you need each page as its own standalone file — common for archiving, OCR processing, or distributing individual certificates.
Select Pages
Best when you only need a handful of specific pages from a much longer document, like extracting just the signature page from a contract.
Common Use Cases
Splitting eBook Chapters
Divide a full-length eBook PDF into individual chapter files.
Separating Invoice Batches
Split a bulk invoice export into individual invoices per client.
Extracting Contract Sections
Pull out just the signature pages or specific exhibits from a contract.
Organizing Scanned Archives
Break a large scanned archive into per-document files for filing.
Splitting Exam Papers
Divide a combined exam PDF into individual student submissions.
Sharing Report Sections
Send only the relevant section of a large report to each stakeholder.
Frequently Asked Questions
Technical note: This tool uses the open-source pdf-lib JavaScript library to copy page content streams directly from the source document into new PDF files, preserving original fonts, images, and vector graphics without re-rendering. When splitting into multiple files, results are bundled into a ZIP archive (built natively in-browser) for convenient single-click download. Encrypted or password-protected PDFs cannot be processed without first removing the password.
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