Split PDF

What is a PDF Splitter?

A PDF splitter extracts pages from a PDF file and saves them as one or more separate PDF files. Instead of sending a 50-page report when someone needs only pages 12–18, or sharing an entire contract when only one section is relevant, a PDF splitter lets you extract exactly the pages you need in seconds. The Toolsiro PDF Splitter runs entirely in your browser — your file is never uploaded to any server.

Four Ways to Split — One Tool

Different situations call for different split strategies. Toolsiro supports all four:

• Select Pages: Click individual page thumbnails to mark which pages to extract. Use the quick-select buttons to mark all pages, no pages, odd-numbered pages, or even-numbered pages. Best for picking a non-contiguous set of pages — for example, pages 1, 5, 9, and 14 from a longer document.
• Page Range: Type ranges using comma-separated notation like 1-3, 5, 8-10. The tool shows a live preview of which pages will be included. Best for extracting a specific chapter, section, or contiguous block of pages from a structured document.
• Every Page: Splits the entire PDF into individual single-page PDFs. A 20-page PDF produces 20 separate files, each named with the original filename and its page number. Best for digitising a stack of scanned documents that were incorrectly merged, or for processing pages individually.
• Every N Pages: Divides the PDF into equal-sized chunks. Set N=5 on a 20-page document and get four 5-page PDFs. Best for dividing a document into equal sections — for example, splitting a 100-page exam paper into 25 sets of 4 pages for distribution.

How to Split a PDF — Step by Step

1. Upload your PDF: Drag and drop the file onto the upload area, or click to open a file browser. The tool accepts standard PDF files up to 100 MB.
2. Choose a split mode: Select from the four tabs — Select Pages, Page Range, Every Page, or Every N Pages.
3. Configure your split: Click pages to select them, type a range, or enter your N value depending on the mode.
4. Click "Split PDF": The tool processes the file locally in your browser. For most documents this takes under 2 seconds.
5. Download results: Each output file appears in the list with its name, page count, and size. Download files individually or use "Download All" to save everything at once.

Common Use Cases for PDF Splitting

• Extract a chapter from an ebook or report: Pull out one chapter or section to share without sending the entire document. Use Page Range mode and type the chapter's start and end page numbers.
• Separate a multi-page scan: When scanning multiple documents together and ending up with a single merged PDF, use Every Page mode to split it back into individual documents.
• Remove pages from a PDF: The fastest way to "delete" pages is to extract the pages you want to keep using Select Pages mode, then download the result.
• Distribute sections of a training manual: Split a 200-page training document into individual modules — Module 1 (pp. 1-40), Module 2 (pp. 41-80) — so each participant only downloads their section.
• Prepare files for email attachments: Most email providers limit attachments to 10–25 MB. Split a large PDF into smaller chunks that stay below the limit.
• Isolate invoices from a monthly statement batch: If your accounting software exports all invoices in a single monthly PDF, use page ranges to extract individual invoices as separate files for specific projects or clients.
• Extract odd and even pages for duplex printing: Print odd pages first, flip the paper stack, then print even pages for manual duplex printing on any printer.

File Naming — How Split Files Are Named

The Toolsiro PDF Splitter automatically names output files based on the original filename and the split logic:

• Select Pages / Range: originalname-pages-1_3_5.pdf (with the selected page numbers in the filename)
• Every Page: originalname-page-7.pdf (one file per page)
• Every N Pages: originalname-part-2-pp6-10.pdf (part number and page range in the filename)

This naming convention makes it easy to identify files without opening them, which is especially useful when splitting large documents into many parts.

Privacy — Your PDF Never Leaves Your Device

Most online PDF tools — including many well-known tools — upload your file to a server, process it remotely, and then send back a download link. This means your document travels over the internet and is temporarily stored on someone else's infrastructure. For confidential documents like contracts, financial reports, medical records, and HR documents, this is a significant privacy risk.

The Toolsiro PDF Splitter uses the pdf-lib JavaScript library to process your file entirely within your browser. Your PDF data never leaves your device. There are no uploads, no server-side processing, and no temporary file storage anywhere outside your own machine.

Supported PDF Types

The tool works with standard, unencrypted PDFs. If your PDF is password-protected, use our Unlock PDF tool first to remove the password, then split the unlocked file. After splitting, if you need to add security back to the output files, use our Protect PDF tool to add a new password.

Related PDF Tools

The PDF Splitter is one tool in Toolsiro's complete free PDF tools collection. Other tools you might need alongside it include Merge PDF to combine multiple PDFs back together, Compress PDF to reduce the size of individual output files, and Rotate PDF to fix page orientation before or after splitting.