How to use the split pdf
- Drop a PDF onto the drop zone or click to choose one.
- Choose how to split: every page, every N pages, custom ranges, or pick pages from the thumbnails.
- For custom ranges, write one output per comma separated item, for example 1-3, 4-6, 9.
- Click Split and download each file, or all of them as a ZIP.
Worked example
Splitting a 9-page report into sections
With custom ranges 1-3, 4-6, 9 the tool creates three PDFs with 3, 3 and 1 pages. Choosing "Every N pages" with N = 4 on the same file gives 4, 4 and 1 pages. Picking pages 2 and 7 in the thumbnail grid gives one 2-page PDF, or two single-page PDFs if you turn on "Save each selected page as a separate PDF".
How it works
Pages are copied from the original into new documents with pdf-lib copyPages, so text stays selectable and images are not re-compressed. Thumbnails are rendered locally with PDF.js.
Assumptions
- Page numbers are 1-based. "8-" means page 8 to the last page and "-3" means pages 1 to 3.
Frequently asked questions
Are my files uploaded?
No. Your PDF is processed in your browser on your own device and is never sent to our server. You can disconnect from the internet after the page loads and the tool still works.
Does splitting reduce quality?
No. Pages are copied as they are, without rendering or re-compressing, so text stays sharp and searchable.
Why are the split files not much smaller than the original?
Each output keeps every font and image its pages use. If all pages share the same large fonts or images, each part still contains them.
Can I use a password protected PDF?
Not for editing. Encrypted or permission-restricted PDFs are refused, because editing them without decrypting would create a broken file or bypass restrictions set by the author. If you are allowed to, remove the protection in the software that created it first.
Limitations
- Files up to 100 MB are accepted, but very large or complex PDFs depend on your device memory and can be slow on phones.
- Bookmarks and interactive form fields are not carried into the split files.
- Encrypted or permission-restricted PDFs cannot be split.