Split PDF by Size
Break a big PDF into small parts that fit the email size limit — each part will be smaller than the max size.
The file is processed in the browser only — it is not uploaded anywhere.
Common email attachment limit is 20–25 MB; to be safe, keep 5–10 MB.
How to use
- Select a PDF file.
- Enter the max size of each part in MB.
- Press "Split PDF" — download each part separately.
Parts will be in order: part-1, part-2... Each part will stay under the size limit.