How to Split PDF Files by Page Range

A 200-page PDF is fine for archiving but wrong for almost everything else. You cannot email it, most portals reject it, and the recipient has to scroll through 180 pages to find the section they need. Splitting is the right move, but "splitting" actually means three different things, and picking the wrong one wastes time.

The three splitting workflows

1. One PDF per page

Produces N files for an N-page PDF. Useful for slide decks that need to be individual images or single-page contracts for signature. Downloads as a ZIP.

2. Split into a specific number of files

Produces 2, 3 or 4 equal-sized files. Useful for splitting a manual into chapters when each chapter starts at a known page, or for keeping each file under a size limit.

3. Extract custom ranges

The most flexible option. You define each output file by page range: 1-3; 4-7; 8-20. Each range becomes one PDF. This is the workflow that actually matches how real reports are structured.

How to split by page range in OmniPDF

1. Open the Split PDF by Page Range tool.
2. Add your PDF file.
3. Enter ranges separated by semicolons, e.g. 1-3; 4-7; 8-40.
4. Click Split PDF. Each range becomes a separate PDF inside a ZIP.

How to split into one PDF per page

1. Open the Split PDF tool.
2. Choose "One file per page".
3. Click Split PDF. Every page becomes its own PDF inside a ZIP.

How to extract just a few pages

If you know exactly which pages you want and don't need the others at all, use Extract PDF Pages instead. Enter the ranges and get one PDF containing only those pages, no ZIP.

What splitting does to bookmarks and forms

• Bookmarks from the original file are preserved in the split files that contain the destination pages. Bookmarks pointing to removed pages are dropped.
• AcroForm fields are preserved in each split file, but if a form field spans multiple pages it will only partially appear in each output.
• Digital signatures become invalid because the bytes of the file change.
• Page numbers printed on the pages are unchanged. If page 15 of the original becomes page 1 in a split file, the printed "Page 15" still shows because it is part of the page content.

Choosing an output size

If your goal is to keep each split file small enough for an upload portal, consider Compress PDF first. Compressing the whole PDF and then splitting is usually more efficient than splitting and then compressing each piece, because you can dial in the compression level once.

Privacy

OmniPDF splits PDFs in your browser. The original file and every output file stay on your device. Nothing is uploaded.