Home / Split by Size
Split PDF by File Size — Free
Email bouncing your 80MB PDF? WhatsApp refusing it? PdfWord's free split-by-size tool cuts your PDF into parts guaranteed under your chosen limit — 10, 25, 50 or 100 MB. No other free site does this.
Unlike most online converters, PdfWord processes your files entirely in your browser — nothing is ever uploaded to a server. There are no accounts, no daily limits, no watermarks, and every tool is free forever.
Split PDF by Size
Split a big PDF into parts under your chosen size — perfect for email & WhatsApp limits.
How to split a PDF by size: upload your PDF, pick the max part size, and get perfectly-sized chunks — each guaranteed under your limit.
How to split a PDF by size
- Upload your big PDF
- Pick the max part size (e.g. 25 MB for Gmail)
- Click Split by Size — download all parts in one ZIP
Frequently asked questions
Pages are added one by one and every part is byte-measured — no part ever exceeds your limit.
Yes — free, no signup, files never leave your browser.
The tool tells you no split is needed.