Split PDF
Cut a PDF into custom ranges, fixed chunks, size-limited parts or chapters from its bookmarks.
- Free
- No sign-up
- No watermark
How to use Split PDF
- 1
Choose a PDF.
- 2
Pick how to split: ranges, fixed size, file size or bookmarks.
- 3
Press Split PDF and download a ZIP or a single file.
This tool runs entirely in your browser. Your files are never uploaded.
Frequently asked questions
Can I split a PDF into files under a certain size?+
Yes. Choose “By file size”, enter a limit such as 10 MB, and PDFNina packs as many pages as fit into each part.
Can I split by chapters?+
If the PDF has bookmarks, choose “By bookmarks” and every top-level bookmark becomes its own file.