How to Split a Large PDF Into Chapters or Page Ranges
A 500-page textbook, court filing, or technical manual is unwieldy as a single file. Splitting by chapter — or by every 50 pages — makes it shareable, searchable, and printable. Here's how to split any PDF in three ways: by range, by bookmark, or every-N-pages.
The problem
You have a long PDF (textbook, scanned book, deposition transcript) and need to send only chapter 3 to a colleague, or break it into 50-page chunks to fit email limits. Acrobat does this for $20/month. Free online tools either limit you to 5 pages or upload your file to a server.
Use the tool now
Open the split pdf tool and follow the steps below.
Step-by-step
- 1
Open the Split PDF tool
Drop the source PDF into the embedded tool below. The tool reads the page count and any bookmarks instantly — locally in your browser.
- 2
Choose your split method
Three options: (1) Page Range — extract pages 50–100; (2) Every N Pages — break into chunks of 50; (3) By Bookmark — split where the table of contents marks chapters.
- 3
Configure the ranges
For Range: type "50-100, 200-300" to extract two segments. For Every N: enter the chunk size. For Bookmark: select which bookmark levels to use as split points.
- 4
Download as a zip
Click Split. Each output PDF is a separate file inside one zip download. Original is untouched.
Pro tips
- •Bookmark-based splitting only works if the source PDF has a bookmark structure. If it doesn't, run Bookmark PDF first to add one.
- •For a 1000+ page PDF, splitting in batches of 100 then merging the small pieces back is faster than one massive split.
- •Use Extract Pages instead of Split if you only need a single section — it's a one-click variant.
- •For court filings or legal exhibits, split by exhibit number using bookmarks for easier indexing.
Frequently asked questions
Will splitting destroy hyperlinks or annotations?
Internal hyperlinks pointing to pages in the same output PDF survive. Cross-page links pointing to a different output piece will break, since the target now lives in a different file.
Can I split a 2 GB PDF in the browser?
Possibly, but expect memory pressure. Close other tabs first. For files over 1 GB, desktop tools like qpdf are more reliable.
Are the output files smaller than the original?
Roughly proportional to page count — a 100-page split from a 500-page source is about 1/5 the size. Run each through Compress PDF if you need them smaller.
Does the tool preserve the original's metadata (title, author)?
Yes by default. Use Edit Metadata afterward if you want each split to have a different title.