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Split by file size
Break a large PDF into parts that each stay under your size limit.
or drop PDF here
Secure. Private. In your control.
How to split a PDF by file size
1. Upload the large PDF you need to break up.
2. Set the maximum size per part (for example 5 MB or 10 MB to fit an email or upload cap).
3. Split, and download a set of PDFs that each stay under your limit, bundled as a ZIP.
Frequently asked questions
How is a PDF split by size?
We add pages to a part until the next page would push it over your size limit, then start a new part — so every output file stays under the maximum you set while keeping whole pages intact.
What if one page is bigger than the limit?
A single page can't be cut in half, so a very heavy page becomes its own part. Compress the PDF first if you need every part strictly under the limit.
Is it free and private?
Yes — free, no signup, no watermark, and your file is deleted within one hour of processing.