Split a PDF by file size
Split a PDF into parts that meet a maximum upload size.
Drop your PDF files here
Or choose them from your device to get started.
50 MB total · No uploads
Set the maximum size per PDF. Consecutive parts are measured against the limit without rasterizing pages.
Download and unzip the size example. Unzip the size example and select size-split-source.pdf. At 500 KB, expect two two-page parts under 500,000 bytes each.
How to use Split to Upload Limit
Set the maximum bytes per PDF
Enter a KB limit; consecutive pages are grouped and each serialized part is measured.
Split to limit
Keep the source, run the task and inspect the result before accepting it.
Check sizes and continuity
Compare the saved copy with the practice result described above before using your own document.
Meet an upload limit with measured PDF parts
Split consecutive pages into PDFs under a chosen maximum, from 100 KB to 20 MB. Each serialized part is checked; pages are not rasterized.
A practical example
For a destination that accepts several 500 KB attachments, enter 500. Download the individual PDFs; the convenience ZIP can exceed the per-file limit.
What to check in the result
Up to 300 source pages. If one page is larger than the limit, splitting cannot make it fit. If a portal accepts one file only, try compression and verify the final size.
Supported files and limits
Use valid, unencrypted PDF files, within 50 MB total input. Up to 300 source pages. Complex files may exceed device memory.
Local document processing · File privacy and website requests.
Help with this task
Questions & answers
Does this compress my document?
No. It splits consecutive page ranges and measures each saved part. If one page exceeds the limit, increase the limit or compress first.
Does the size limit apply to a ZIP?
Each downloadable PDF is independently checked against your limit. The optional ZIP is a convenience download and can exceed that limit. Use this only for destinations that accept multiple files.