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FilesKit

Split a PDF

Cut one PDF into several files: by page ranges like 1-3, 5, 8-, by a fixed number of pages, or by clicking the pages you want. Processing happens in your browser.

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Features

  • Page ranges

    Type ranges such as 1-3, 5, 8-. Each entry becomes its own file, and 8- means page 8 to the end.

  • Fixed-size parts

    Split every N pages. With N = 1 you get one file per page.

  • Pick pages visually

    Click page thumbnails to choose pages. The selection is saved together as one PDF, in document order.

  • Live checking

    Your ranges are checked against the real page count as you type, so mistakes like page 0 or a backwards range show up before you start.

How to use Split PDF

  1. Choose a PDF or drop it onto the page. Thumbnails of its pages appear.
  2. Pick a mode: page ranges, a fixed number of pages per file, or select pages by clicking.
  3. Check the preview of how many files will be created, then select Split PDF.
  4. Download the files one by one, or all together as a ZIP.

Supported formats

AcceptsPDF
ProducesPDF (one or several files, or a ZIP)

Limits and things to know

  • One PDF at a time, up to 100 MB.
  • At most 300 output files per run. For a very long document use larger parts.
  • Password-protected or damaged PDFs cannot be split; the page tells you which problem it found.
  • Each output is a new document that carries the fonts and images its pages use, so many small parts of a document with large shared images can add up to more than the original size. Bookmarks and form-field links are not preserved.

Privacy and processing

The PDF is read and cut apart inside your browser by the open-source pdf-lib library, running in a Web Worker. Page thumbnails are drawn locally by PDF.js. FilesKit has no server that receives your file, and nothing about it is sent anywhere.

Common uses

  • Extract a chapter

    Save pages 12–30 of a long report as its own file.

  • One file per page

    Turn a scanned batch of single-page forms into separate documents.

  • Share only what is needed

    Send a colleague two relevant pages instead of the whole contract.

  • Break up a large file

    Cut a big PDF into equal parts so each one is small enough to email.

How this differs from other approaches

Online splitters usually upload the whole PDF to a server before cutting it. FilesKit cuts the file on your device, so there is no upload and no waiting for the transfer. Desktop PDF editors keep bookmarks and other document structure and can open very large or protected files; use one when you need those.

Frequently asked questions

How do I split a PDF into single pages?

Choose the fixed-size mode and set the number of pages per file to 1.

What does a range like 8- mean?

It means page 8 up to the last page. Ranges may also overlap, and each entry creates its own file.

Is my PDF uploaded to a server?

No. The splitting is done by your browser, and FilesKit has no server that receives files.

Why are the split files larger than I expected?

Every output includes the fonts and images used by its pages. If many parts share a large image, each part contains a copy of it.

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