How to split a PDF into parts under a size limit
Email services and upload forms often reject big files. If compressing isn't enough, you can cut the PDF into several parts that each stay under the limit.
Open Split PDF by sizeSplit a PDF by size
- Open Split PDF by size and add your PDF.
- Choose the biggest size each part may be, for example 25 MB for email, or enter your own limit.
- Click Split PDF. The parts download together as one zip file.
Pages stay in their original order. A part is filled until the next page would take it over the limit, then a new part starts.
When one page is bigger than the limit
A single page can't be cut in two. If one page is already over your limit, it becomes its own part and you are told which page it was. Try Compress PDF on the original first, then split the smaller file.
Compress or split?
Compressing keeps one file and makes it smaller by reducing image quality. Splitting keeps full quality but gives you several files. Use compression first if one file is required, and splitting when several files are fine.
Try it now
Cut a big PDF into parts that each fit under a size limit, such as 2 MB or 25 MB.
Open Split PDF by size →Related tools: Compress PDF, Split PDF