Split PDF

Split a PDF by page ranges, into single pages, or every N pages — all in your browser.

ToolFlux's Split PDF tool divides any PDF by page ranges, into single pages, or every N pages — entirely in your browser. Your file never uploads, and multiple outputs come back as one tidy ZIP.

Your file never leaves your device — all splitting happens in your browser.

    Split PDF files online — free and private

    Sometimes a single PDF holds far more than you need to share: a 40-page scan when you only want chapter two, a bank statement bundle you want broken into monthly files, or a signed contract whose appendix should travel on its own. This Split PDF tool lets you pull pages out of any PDF — by custom ranges, one page at a time, or in fixed-size chunks — and it does the whole job inside your own browser. Your document is never uploaded, never stored, and never shared. When you close the tab, it is gone from memory.

    How to split a PDF

    1. Add your PDF Drag and drop a PDF onto the box above, or click to browse. Only a single PDF is needed; the tool reads its page count locally.
    2. Choose how to split Pick custom page ranges (e.g. "1-3, 5, 8-10"), one file per page, or a fixed number of pages per file. The form changes to match your choice.
    3. Click “Split PDF” A progress bar tracks the work as each output document is built in your browser. Larger PDFs take a moment because everything runs on your device.
    4. Download the result Save the single PDF, or the ZIP archive containing all your split files, wherever you like.

    Three ways to split, explained

    Custom page ranges give you precise control: type something like 1-3, 5, 8-10 and you get three separate PDFs — pages 1 to 3, page 5 on its own, and pages 8 to 10. Each comma-separated part becomes one output file, in the order you wrote it. One file per page explodes the document so every page becomes its own single-page PDF — handy when you need to send pages individually or reassemble them in a new order. Every N pages cuts the document into equal chunks: choosing 2, for example, produces files for pages 1-2, 3-4, 5-6, and so on, with a shorter final file if the page count is odd. Whenever a split produces more than one file, the tool bundles them into a single ZIP so you only download once.

    Common uses

    • Extract a section. Pull a single chapter, form, or exhibit out of a long report.
    • Separate statements. Break a multi-month bank or utility bundle into one file per period.
    • Share selectively. Send only the relevant pages of a contract without exposing the rest.
    • Reorganise scans. Split every page out, then reorder or re-merge them into a cleaner document.
    • Lighten a file. Keep just the pages you need so the PDF you send is smaller and easier to read.

    Why split PDFs in your browser?

    Most “split PDF” websites upload your document to a remote server, process it there, and ask you to trust that they delete it afterwards. For anything sensitive — financial records, medical forms, legal paperwork — that is a real privacy risk. Because this tool runs 100% on your device using the open-source pdf-lib engine, your file is never transmitted over the internet. It also works offline once the page has loaded, and there is no upload size cap. To split a different document, you can keep using the tool without ever sending a byte to a server. For the reverse operation, see the Merge PDF tool; to turn pages into images, try PDF to JPG.

    Frequently asked questions

    Is my PDF uploaded to a server when I split it?
    No. The entire split happens inside your web browser using JavaScript. Your file is never uploaded, stored, or transmitted anywhere, so even confidential contracts and statements stay completely private on your device.
    How do I write page ranges?
    Use comma-separated pages and ranges, for example "1-3, 5, 8-10". Each comma-separated part becomes one output PDF: "1-3" makes a 3-page file, "5" makes a single-page file, and "8-10" makes another 3-page file. Pages are numbered from 1, and spaces are ignored.
    What is the difference between the three split modes?
    Custom ranges lets you pick exactly which pages go into each output file. Individual pages turns every page into its own one-page PDF. Every N pages cuts the document into equal chunks — for example, every 2 pages makes files of pages 1-2, 3-4, 5-6, and so on, with a shorter final chunk if needed.
    How are the split files delivered?
    If your split produces a single PDF, it downloads as one .pdf file. If it produces several PDFs, they are bundled into one .zip archive so you get everything in a single download. The ZIP is created in your browser too.
    Will splitting change the quality of my pages?
    No. Pages are copied byte-for-byte into the new documents, so text stays selectable, fonts stay embedded, and images keep their original resolution. Splitting never re-renders or recompresses your pages.
    Why did I get an error about an invalid or password-protected PDF?
    The tool checks the file’s header and structure before splitting. If the file is not a real PDF, is corrupt, or is encrypted with an open password, splitting stops with a clear message. Remove the password or pick a valid PDF and try again.
    What happens if I enter a page number that does not exist?
    The tool tells you the document’s real page count and asks you to correct the range. For example, asking for page 12 of a 10-page PDF produces a clear “out of range” message instead of a broken file.
    Can I split a PDF on my phone?
    Yes. The tool works in any modern mobile browser. Choose a PDF from your phone’s files, pick a split mode, and the resulting PDF or ZIP downloads straight to your device — no app to install.