Split PDF
Break a PDF into separate files. Runs entirely on your device.
Split PDF cuts a document into fixed-length runs of pages, one output file per run, named with your file's stem and a three-digit counter: report-001.pdf, report-002.pdf. Pages per output file defaults to 1, giving one PDF per page. Anything but a whole number of 1 or more is refused before a page is copied.
Questions
How does the split decide where to cut?
By a fixed number of pages. "Pages per output file" of 1 gives you one PDF per page; 10 gives you a file for pages 1 to 10, another for 11 to 20, and a shorter last file with whatever remains.
What are the output files called?
Your file's name with a three-digit counter: report.pdf becomes report-001.pdf, report-002.pdf and so on, in page order, so they sort correctly in any file manager.
Can I split at specific places instead of every N pages?
Yes. Open "In half" and drag the slider to put the cut after any page, which writes a cut point rather than a fixed length, so the two parts do not have to be the same size. On the command line the same thing is at=7. For cuts driven by size, bookmarks or text, switch to those tabs.
Do I get a ZIP or separate files?
Separate PDFs, listed on the page with a download for each. Nothing is zipped, so you can take only the parts you want.
Does splitting lose quality?
No. Each output is built by copying the original pages, so text stays text and images keep their original data. The parts together are usually a little larger than the original, since each file repeats the resources its pages need.