EveryPDFToolSplit PDF by File Size
Divide a large PDF into smaller PDF files that stay under your chosen MB limit while preserving page order and PDF content.
Drop your PDF here
Choose the PDF you want to divide into smaller files.
Maximum input file size: 50 MBSplit a PDF into files under a size limit
Email systems, government portals, job applications and document submission websites often impose maximum attachment sizes. Instead of manually guessing which pages will fit, this tool measures the actual generated PDF parts and divides the document accordingly.
Pages remain in their original order. The tool adds consecutive pages to each part until another page would push that PDF over your chosen size limit, then starts the next part.
Split PDF under 5 MB or 10 MB
Enter any target from 0.5 MB to 49 MB. For example, enter 5 to split a PDF into parts no larger than 5 MB, or enter 10 for a 10 MB limit. The number of pages in each part can vary because different PDF pages can contain very different amounts of data.
Splitting is different from compressing
This tool does not automatically lower image resolution just to reach the target size. It copies the original PDF pages into smaller documents. If one individual page is already larger than your selected limit, the tool will tell you to choose a larger target or use Compress PDF first.
Tested by EveryPDFTool
We tested the splitter with a six-page PDF measuring about 1.25 MB and selected a 0.5 MB maximum part size. The result was three PDF files containing pages 1–2, 3–4 and 5–6.
The largest generated part measured 437,731 bytes, below the 524,288-byte target. All six pages remained in order and their selectable text was preserved.
Frequently asked questions
Can I split a PDF into files under 5 MB?
Yes. Enter 5 as the target size. The tool will create consecutive PDF parts that stay at or below the 5 MB limit when each individual page can fit within that limit.
Can I split a PDF into files under 10 MB?
Yes. Enter 10 MB as the target and the document will be divided into parts based on the actual generated PDF sizes.
Does splitting by size reduce PDF quality?
The splitter does not automatically rasterize pages or downsample images. It copies PDF pages directly into the output documents.
Why can one page be larger than the selected size?
A page can contain large images or other embedded data. If that one page already exceeds your target, splitting cannot make the page smaller without changing its content. Use a larger target or compress the PDF first.
Will every PDF part contain the same number of pages?
Not necessarily. Parts are created according to actual file size, not a fixed page count, so one part may contain more pages than another.