PDF Split by Size
FreeSplit a PDF into chunks based on file size limits
About PDF Split by Size
Email attachment limits and upload caps can block a large PDF in its tracks. Instead of guessing where to cut, this tool splits your document into smaller chunks that each stay under a file-size limit you set, so every piece fits where it needs to go.
Common uses
- Break a large PDF into email-friendly attachments
- Split a document to fit an upload size limit
- Divide a big scan into manageable pieces
- Prepare oversized files for a portal that caps file size
- Send a long report in parts that each fit a quota
How to use
- 1
Upload your file
Click the upload area or drag & drop your file. Supports APPLICATION/PDF. Up to 50 MB.
- 2
Click "Process — PDF Split by Size"
Click the process button. Your file is converted instantly on our secure servers.
- 3
Download your result
Preview and download your converted file. No watermarks, no quality loss, no expiry.
Why ToolHub?
- 100% Free — no account needed
- Works in your browser — no software required
- Instant results
- Secure and private
- No data stored
- Simple to use
FAQ
Can I choose the maximum size per chunk?
Yes. You set the size limit, and the tool splits the PDF so each resulting file stays within it.
How are the chunks delivered?
The split files are bundled together in a single ZIP archive for easy download.
Are pages ever cut in half?
No. The split happens at page boundaries, so each chunk contains whole pages while respecting your size limit.
Can I use PDF Split by Size on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.