Split a PDF into Chapters
Long manuals, textbooks and reports are easier to send, upload and read in parts. Enter the page range of each chapter and Split PDF creates one file per chapter in a single step.
How to Split a PDF into Chapters
- Find the chapter pages Look up where each chapter starts – in the table of contents, the bookmarks of your PDF viewer or by scrolling through the file.
- Choose "Custom page ranges" Open Split PDF, add your file and select this split mode.
- Enter one range per chapter For example 1-12, 13-40, 41-75. Each range becomes its own PDF.
- Download the chapters Save the parts as separate PDFs or together in one ZIP file.
Tips for Splitting Long PDFs
Page numbers in the file
Ranges use the position of the page in the file. If the book starts with a cover and roman-numbered pages, chapter 1 may begin on page 15 of the file.
Bookmarks
If the PDF has bookmarks, choose "By bookmarks (chapters)": every top-level bookmark starts a new file named after the chapter. Without bookmarks, enter the ranges yourself.
Equal parts instead
If chapters do not matter, split into a set number of files or a fixed number of pages per file.
Still too large to send?
Compress a chapter with Compress PDF if it is still over an upload or email limit.
No quality loss
Pages are copied as they are – text stays selectable and images keep their resolution.
Your file stays on your device
The tools work in your browser; your document is not uploaded to our server.
Good to Know
- Split PDF accepts files up to 100 MB.
- A file name pattern such as {original}_part_{part} numbers the chapter files automatically.
Splitting a PDF into Chapters – Frequently Asked Questions
Can the tool find the chapters automatically?
No. You enter the page range of each chapter; the tool then creates all files in one step.
Can I leave pages out?
Yes. Pages that are not in any range – such as blank pages or an index – are not included in the output.
Can one page be in two chapters?
Yes. Ranges may overlap, for example when a chapter ends and the next one begins on the same page.
Does splitting reduce quality?
No. The pages are copied unchanged – text stays selectable and images keep their resolution.
Is my file uploaded to a server?
No. The tool works in your browser, so the PDF never leaves your device.
Is it free?
Yes – no sign-up, no watermark and no limit on the number of files.
Turn One Long PDF into Chapters
Enter the page ranges and download one PDF per chapter.
Split PDF into Chapters