PDF · free · in-browser

Split PDF by file size — 5 MB, 10 MB, 2 MB parts

Enter the maximum size per part. FABX packs consecutive pages into each part measuring the real saved size, so every part is under the limit and nothing is out of order. Made for the GST portal (5 MB), income-tax e-proceedings, court e-filing and email attachments.

No uploadNo sign-upNo limitsNo watermarkWorks offline

Select PDFor drop PDF here

Custom ranges Every N pages One file per page By file size

Ranges (one output file per range)

Separate ranges with commas. A single number like 5 means just that page; 7- means page 7 to the end.

How to split pdf by file size

Choose the PDF.
Enter the maximum MB per part (5 for GST, 10 for most email).
Press Split. Parts download in order, named with their page ranges.

Questions

A single page is bigger than the limit — what happens?

It is kept as a one-page part and flagged in red. Compress the PDF first, then split.

Does it change the pages?

No. Pages are copied exactly; only the grouping changes.

Also useful

Related searches: split pdf by size, split pdf into 5mb, pdf under 5 mb, reduce pdf size for gst portal, split pdf for email. FABX split pdf by size is a free online tool by FABX Labs, Bengaluru. Processing happens on your own device in the browser, so the file is never uploaded to a server — check the network tab and you will see no requests.