PDF tasks · Everyday documents

Split one PDF into separate files by page range

Written November 14, 2026

One long PDF, three people who each need only their part. Splitting it by page range gives each reader a small, named file instead of the whole bundle, and the original stays intact while you cut the copies.

What you need

• The page ranges, written down first. Open the PDF, note where each part starts and ends — for example pages 1–4 for the letter, 5–9 for the forms, 10–18 for the appendix. Splitting is fast once the ranges are decided, and slow when you hunt for them mid-job.
• A decision about sensitivity. Routes 1 and 2 keep the file on your own machine. Route 3 uploads it. For ID scans, tax papers, or anyone else's personal details, stay local.

Route 1: PDFsam Basic, on your own machine

PDFsam Basic is a free, open-source desktop program for this family of jobs — split, merge, rotate, extract pages. The split happens on your computer, and the original file is not changed.

1. Install it from the source. Go to pdfsam.org and download PDFsam Basic. Get it from that official site only.
2. Open the Split tool and add the PDF. On the home screen, choose Split, then drag in the long PDF or pick it with the add button.
3. Choose how to split. For named parts, split after specific pages: enter the page numbers where each part should end, such as 4, 9 for parts ending at pages 4 and 9, with the rest in a final file. For uniform chunks, split every n pages instead. To pull out one range only, use the Extract tool and enter that single range.
4. Name the output and run. Set the destination folder, then select Run. PDFsam writes one new PDF per part, with the pages exactly as they looked in the original.

Route 2: Acrobat, if you already have it

Adobe's own walkthrough for Acrobat is Organize Pages > Split: open the PDF, choose Organize Pages, then Split, and split by number of pages, by file size, or by top-level bookmarks. The free Acrobat Reader does not include this split tool, so this route is only for people who already have the full Acrobat.

1. Open the PDF and the Split tool. Open the file in Acrobat, choose Organize Pages, then select Split.
2. Pick the split rule. Choose number of pages for even chunks, file size when a portal caps uploads, or top-level bookmarks when a long report should break at its chapters.
3. Set the output options. Select Output Options to choose the folder and how the new files are named, then select Split and save the results.

Route 3: an online splitter, for one-offs

Browser split tools need no install. They suit a single file that is not sensitive, on a borrowed machine.

1. Open the split tool and upload. Go to the Split PDF page and select or drag in the file. On the free tier, expect limits on file size and on how many jobs you can run.
2. Set the ranges. Choose range mode and enter each part's start and end pages, matching the list you wrote down before you started.
3. Split and download promptly. Select the split button, then download every resulting file straight away. Online tools delete uploads and results after a short window.

After the split

• Open each new file. Confirm the first and last page of every part are the pages you intended. An off-by-one range is the common error, and it is obvious in ten seconds per file.
• Rename for the reader. Application-letter.pdf and Application-forms.pdf beat split-1.pdf and split-2.pdf the moment someone else has to find them.
• Keep the original whole. The complete, original PDF is your master copy. Keep it until every part has been accepted by whoever asked for it.

End state

• Each part is its own PDF, holding exactly its page range and no extra pages.
• Every new file opens cleanly and carries a name that says what is inside it.
• Together, the parts cover the whole original with no page missing and no page sent twice.
• The original PDF is still on your machine, unchanged.

When it goes wrong

• A part starts or ends on the wrong page. The ranges were off by one. Nothing is lost — fix the range list and run the split again from the untouched original.
• The tool refuses the file. The PDF is usually password-protected or restricted by its maker. If it is yours, open it with the password and save an unprotected copy first. If an institution sent it, ask them for an unlocked version.
• You need pages from the middle only. That is an extract, not a split. Use the Extract tool in PDFsam Basic, or the range mode in the online tool, and save just that range as one file.
• One part is still too large for email. Scanned pages carry the weight. Split that part further, or run it through a compress tool before sending.