Are my files uploaded to a server?

No. This conversion runs inside your browser using your own device’s processing power, and the file is not uploaded. Once a tool has been used once (video, text recognition and background removal download their engine from this site the first time), it keeps working when your connection drops.

Can I split at specific page numbers instead of by size?

Yes. Choose Page ranges under Split by and type them, for example 1-3, 4, 5-9: each range becomes its own file. Every N pages and One page per file are in the same list.

Do the parts lose quality?

Splitting alone does not change page content. Quality is only reduced if the size limit forces compression to meet your target.

Split a PDF into smaller files

Runs on your device · Your file never leaves your device.

Set the maximum size each part is allowed to be, and a large PDF is divided into a series of smaller documents that all satisfy that limit. Or split it every so many pages, into one file per page, or by page ranges you type. Each part is a valid PDF you can open and send on its own.

This solves the common problem of a mail server or upload form that rejects anything above a fixed size: instead of failing, you get parts sized to pass.

Everything is processed on your device, so a confidential document is never copied to a third-party server just to be divided up.

How to split a PDF into smaller files

Add the PDF you want to break up.
Choose how to split it: under a size limit, every N pages, one page per file, or by page ranges you type.
Press Create split files — the pages are copied across without being re-rendered; only a single page that is over the size limit by itself is redrawn as a picture.
Download the parts as a ZIP, or each one individually.

Supported formats and limits

Input: PDF (any version)
Output: Several PDFs, or a ZIP of them
Split by: Size limit, every N pages, one page per file, or page ranges
Quality: Lossless — pages are copied, not re-encoded
Where it runs: In your browser; nothing uploaded

Not for: Reducing file size — splitting divides the pages up, and the parts together can be larger than the original, since each carries its own copy of shared fonts and images; use the compressor for that.

Four ways to cut the file

The Split by list offers Size limit, Every N pages, One page per file and Page ranges. For ranges, type something like 1-3, 4, 5-9: each item between commas becomes its own file, so that example gives three, and digits typed in any script are understood. Pages that the PDF does not have are skipped. The files are named after the original with the pages they hold, such as report_p1-3.pdf.

With Size limit, each part is a run of consecutive pages: part 1 starts at page 1 and takes as many pages as fit under your number, part 2 carries on from there, and the parts are named report_part1.pdf, report_part2.pdf and so on. The number is in megabytes, as on /compress-pdf, and this page starts at 5. For email, remember that attachments grow by about a third when a message is sent, so choose a part size around three quarters of the mail limit.

Downloading the parts

When there is more than one file, the first download holds all of them in one ZIP, and each file also has its own button. A long list shows the first 20 files; the ZIP always holds every one. Several PDFs, or a zip of them, can be added at once, and each is split on its own.

Why the parts can add up to more than the original

Pages in one PDF often share things: the same fonts, a logo repeated in every header, a background picture. The original stores each of these once. A part has to open on its own, so it carries its own copy of everything its pages use. The parts together can therefore be larger than the original, sometimes many times larger when every page reuses one big picture. If what you need is a smaller total, use /compress-pdf.

When one page is too big on its own

With Size limit, a page that is over the limit by itself cannot be divided further. That page alone is redrawn as a picture and compressed until it fits, as explained on /compress-pdf, so its text is no longer selectable; every other part keeps its text. If even that cannot reach the number, its download is labelled Smallest result (still over limit). The other three ways never change a page. Bookmarks are not copied into the parts, and a PDF that needs a password to open asks for it once; the parts carry no password.

Frequently asked questions

Are my files uploaded to a server?: No. This conversion runs inside your browser using your own device’s processing power, and the file is not uploaded. Once a tool has been used once (video, text recognition and background removal download their engine from this site the first time), it keeps working when your connection drops.
Can I split at specific page numbers instead of by size?: Yes. Choose Page ranges under Split by and type them, for example 1-3, 4, 5-9: each range becomes its own file. Every N pages and One page per file are in the same list.
Do the parts lose quality?: Splitting alone does not change page content. Quality is only reduced if the size limit forces compression to meet your target.