Split a PDF every N pages, by max file size, or into a set number of files.
Split a PDF three ways: every N pages, capped at a maximum file size (great for email limits), or evenly into a set number of files. The parts are delivered as a ZIP. Files are processed securely and never stored.
Upload your file using the tool above.
Adjust any settings to your preference.
Click the process button and wait for results.
Download your output using the download button.
Split by size when something imposes a limit — an email attachment cap or an upload form that rejects anything over 10 MB. Split by page count for regular chapters or batches. Split into a fixed number of files when you are dividing work between people and want roughly equal parts.
It is best-effort, because pages cannot be broken mid-page. The tool fills each part up to the limit and starts a new one before exceeding it, so parts come in under your target rather than exactly on it. A single very heavy page can still exceed a small limit on its own — compress the PDF first if so.
Yes, each part is a complete, independent PDF that opens normally. Page content transfers intact with text still selectable. Document-level features such as bookmarks pointing across the split boundary lose their targets, which is expected once a document becomes several separate files.
Yes, Split PDF by Size or Count is completely free. No signup, no account, and no watermark on outputs. A Pro tier is available for 100 AI ops/day and larger file sizes.
Split PDF by Size or Count uploads your file over an encrypted connection to our own processing server, converts it, and returns the result. The file is deleted immediately after processing and is never used for anything else. It is not sent to any third party, and we keep no copies.
Drop a PDF to split into files
Split by page count, file size, or number of files (ZIP)
Drop your file into the stage to begin.
Three ways to split: By pages (a new file every N pages), by size (each file stays under your MB limit — great for email attachments), or by count (split evenly into a set number of files).
Sensible ranges: The tool checks your number against the uploaded PDF — e.g. you can’t make more files than there are pages, and it warns when a value would produce just one file — and previews the expected result so there are no surprises.
Privacy: Your PDF is sent over an encrypted connection, split in memory, and deleted immediately after — never stored.