About Split PDF
This does the opposite of merging: it pulls pages out of a PDF. Two modes cover the common needs — extract a specific range into one smaller PDF (say, just the pages you need to send), or burst a document so every page becomes its own file. Handy for sharing a single chapter, separating a batch-scanned stack back into individual documents, or dropping the pages you don't need.
It all happens on your device, so the original — however sensitive — is never uploaded.
How it works
The PDF is loaded with pdf-lib in your browser and its page count is read. Then:
- Extract a range — you type page numbers and ranges like
1-3, 5, 8-10. The tool parses them, ignores anything out of range, removes duplicates, and copies just those pages (in ascending order) into one new PDF. - Split every page — each page is copied into its own single-page PDF; the set is bundled into a ZIP for one download, with files named
document-page-01.pdf,-02, and so on.
Pages are copied as real vector pages, so text and quality are preserved.
Assumptions and defaults
- The range box defaults to
1-<last page>(the whole document). - Range parsing is forgiving: reversed ranges like
5-3are read as3-5, duplicates are removed, and page numbers outside the document are ignored. Pages come out in ascending order regardless of the order you typed them. - Extracted output is named
document-pages.pdf; the split-every-page ZIP isdocument-split.zip. - Page numbering is 1-based (the first page is 1).
Limitations
- Extraction preserves document order — it collects the pages you asked for in ascending order; it doesn't reorder pages to a custom sequence.
- Encrypted or corrupted PDFs can't be opened and will show an error; remove protection first.
- Like merging, document-level features (bookmarks/outlines, some form fields or scripts) may not carry into the split files, though page content and text are preserved.
- Splitting a very large document into many single pages is memory- and time-bound by your device, since each page becomes its own file locally.
Privacy
Splitting is done in your browser with pdf-lib. Your PDF and the resulting files never leave your device.

