Split PDF by File Size
Break a large PDF into parts under a maximum file size.
Runs in your browser — files never leave your device
or drop a file here
How to split a PDF by file size
Break a big PDF into parts that each stay under a size limit, ideal for email attachments and upload forms.
Add a large PDF.
Enter the maximum size per file in MB.
Click Split PDF and download the parts.
Split by Size FAQ
Only if a single page is bigger than the limit on its own. Pages are never cut in half.
No. It divides the document between files without changing the page content. To make the file itself smaller, use Compress PDF.
No. The tool runs entirely in your browser, so your files are processed on your own device and never leave it.
Yes. Every PDFCraftly tool is free, with no sign-up, no watermark and no email required.
Guides
- PDF Too Large to Email? 5 Practical FixesEmail attachment limits are usually 20–25 MB. Here are five practical ways to send a large PDF: compress it, remove pages, split it by size and more.
- Compress a PDF for a UK Visa Application: UKVCAS, VFS Global and TLScontact Upload LimitsUKVCAS takes PDF, JPG and PNG files up to 7.25 MB each; VFS and TLScontact show their limit on the upload page. How to shrink visa documents to fit.
- Compress a PDF for a UK University Application: 2 MB, 4 MB and 5 MB Portal LimitsLSE and Edinburgh cap each upload at 2 MB, Oxford at 4 MB and UCL at 5 MB. How to compress transcripts, certificates and references to fit each portal.
- ImmiAccount Attach Documents: How to Compress a PDF Under 5 MBImmiAccount accepts documents up to 5 MB each and up to 60 per person, and rejects encrypted PDFs. How to compress, merge and unlock files to fit.
- How to Compress a PDF Without Losing QualityMake a PDF smaller for email, WhatsApp and upload portals. Learn what makes PDFs big, which compression level to pick, and how to keep text sharp.
- How to Split a PDF Into Two Parts: 3 WaysSplit a PDF into two files at a page number, cut double-page scans into left and right pages, or halve a big file for email. Pick the right method.
More organize tools
- Merge PDFCombine several PDFs into one document, in the order you choose.
- Split PDFSplit by page ranges, every N pages, or into single pages.
- Split by BookmarksCreate one PDF per chapter using the document outline.
- Split by TextStart a new file on every page that contains a word or phrase.
- Split in HalfCut two-up scanned pages down the middle into separate pages.
- Extract PagesPick the pages you want and save them as a new PDF.
- Remove PagesDelete unwanted pages from a PDF.
- Organize PDFReorder, rotate, delete and insert blank pages visually.