Split PDF by Size
Automatically split a PDF into multiple files, each under a target file size you specify. The ideal solution when you need to email a large PDF that exceeds attachment limits.
- 1Upload the large PDF you want to split
- 2Enter your target file size limit, e.g. 20MB for Gmail
- 3The tool calculates how many parts are needed automatically
- 4Click 'Split by Size' to process
- 5Download each part individually or all as a ZIP file
- Split a 15 MB scanned document into files under 5 MB for email attachment
- Divide a large PDF into chunks under 2 MB to upload to a portal with size limits
- Break a photography portfolio PDF into parts small enough to share via WhatsApp
- Split a legal submission PDF to meet court filing system file-size requirements
Related Tools
Split PDF
Split a PDF into multiple separate files by specifying custom page ranges. Each range becomes its own PDF — ideal for breaking up large reports, manuals, or combined document sets.
Split PDF by Bookmarks
Split a PDF at its bookmark boundaries, producing one separate file per chapter or section. Perfect for distributing individual chapters from a combined manual or ebook.
Split PDF Every N Pages
Split a PDF into equal-sized chunks by specifying how many pages per chunk. A 50-page PDF split every 10 pages produces five 10-page files automatically.
Extract PDF Pages
Extract specific pages from a PDF and save them as a combined new PDF or individual separate files. Enter page ranges like 1-3, 5, 7-9 to cherry-pick exactly the content you need.