Free Split PDF Online
Extract any page range from your PDF — instantly, in your browser. No upload, no account required.
PDF splitting lets you extract specific pages or ranges into a new document without affecting the original. Common uses include isolating an invoice page from a multi-page bundle, sharing one chapter from a lengthy report, separating a scanned document into individual files, or removing unwanted pages before sending. The file never leaves your device — pdf-lib reads it in your browser memory, extracts the requested pages, and downloads the result.
Click to select or drag & drop your PDF here
How it works
Open your PDF
Click or drop the file in. It is read into browser memory, never uploaded.
Name the page range
Pages 3-8, or a single page. The original document is left untouched.
Download the extract
A new PDF containing only the pages you asked for.
Enter a starting page and ending page to extract that range as a new PDF. Page numbering starts at 1. To extract a single page, enter the same number in both fields. The original PDF is not modified — the tool creates a new document containing only the selected pages and downloads it immediately.
When Should You Split a PDF?
Splitting a PDF is useful when you need to share only a portion of a document — for example, extracting specific chapters from a report, separating invoices from a batch, or isolating pages for email attachment. Unlike server-based tools, OneConvert processes your PDF entirely in your browser using pdf-lib, meaning your document never leaves your device.
Simply select your PDF, enter the start and end page numbers, and click Split. The extracted pages download immediately as a new PDF file. You can repeat the process to extract multiple ranges from the same document.
What Splitting Does to the File Itself
A PDF is not a stream of pages but a graph of numbered objects — fonts, images, content streams — tied together by a page tree. Splitting does not re-encode anything: pdf-lib walks that tree, copies the objects the selected pages reference into a new document, and writes a fresh cross-reference table. Every glyph, vector path and embedded image arrives byte-identical. There is no generation loss, so extracting page 3 twenty times in a row produces twenty identical files.
The practical consequence is that the extracted file is often much smaller than a proportional share of the original — but not always. If pages 1 and 40 both use the same embedded font or logo, that resource is copied into whichever output needs it, so two halves of a split can together exceed the size of the source. Conversely, extracting one page from a report whose images all live on other pages can yield a file of a few kilobytes.
Some things do not survive, because they belong to the document rather than to a page. Bookmarks pointing at pages you did not extract have nowhere to land and are dropped. Form fields keep their appearance but lose the document-level structure that groups them. Links to a target page outside the extracted range become inert. If any of that matters, extract a range wide enough to contain both the link and its destination.