PDF Splitter

What this tool does

The PDF Splitter breaks a single PDF into smaller files based on rules you provide. You can define precise page ranges — pulling out only the pages you need into separate PDFs — or you can split the whole document uniformly into chunks of a fixed page count. Every output PDF is bundled into one ZIP file for a single, convenient download. Everything runs in your browser; the original file never leaves your device.

Why you might need it

A long PDF is often only partially useful. A legal contract might be 80 pages but the exhibit section you need for reference is pages 42 through 55. A textbook in PDF form might contain ten chapters, and you want each chapter as a standalone file you can send to colleagues individually. An exam paper archive might hold 200 past papers concatenated into one file, and you need to extract specific years.

Splitting also solves the opposite problem from merging. If you receive a combined report and need to distribute different sections to different departments, splitting lets you divide the file without any editing software. For freelancers, splitting invoices or contracts out of a combined statement keeps records organised and makes it easier to share only what is relevant with each client.

How to use it

1. Drop your PDF onto the dropzone or click to browse for the file. The tool reads the page count and shows it below the file name.
2. Choose a split mode. Custom page ranges is for targeted extraction; Every N pages is for uniform division.
3. For custom ranges, type your ranges into the text field. Use hyphens for contiguous runs (1-3) and commas to separate each chunk (1-3, 5, 8-10). Each comma-separated entry becomes one PDF in the ZIP.
4. For every-N mode, type the number of pages you want per chunk. The preview line tells you how many output files will be created.
5. Click Split PDF. A progress indicator appears while the browser builds each chunk and packages them.
6. When complete, click Download ZIP to save the archive. Unzip it to access each individual PDF.

Common pitfalls

Page range syntax must be exact. A range like 3-3 is valid (it produces a single-page PDF from page 3). A range where the start is greater than the end, such as 10-5, will be rejected with a clear error. Page numbers must exist in the document — referencing page 50 in a 30-page PDF triggers an error immediately, before any processing happens.

If every-N splits produce too many tiny files, consider increasing N. For a 300-page scanned textbook split into 3-page chunks, you would get 100 PDFs, which can be unwieldy. Splitting into chapters using custom ranges is usually more practical.

Tips and alternatives

For extracting just one or two pages quickly, the custom range mode is faster than every-N — type the page number, click Split, done. For extracting a continuous section from the middle of a report (say pages 10 to 24), a single range like 10-24 is all you need.

If you want to remove a few pages from a large PDF rather than extract a section, the PDF Page Remover may be more natural: you click pages to mark them for deletion and download the result in one step.

After splitting, if the resulting files feel large, run them through the PDF Compressor to reduce the file size before sharing. Scanned PDFs in particular benefit from compression since each page is essentially a high-resolution image.