Split PDF
Make a new PDF from selected pages, or divide one document into consecutive groups. This tool uses physical page positions and processes supported static PDFs in your browser.
Choose pages and create your files
- Choose one PDF and wait for its page count and compatibility check. The limit is 20 MiB and 500 physical pages. Protected files, forms, signature indicators and unsupported annotations are rejected.
- Choose Extract pages and enter a selection such as 1,3-5,8, or choose Split every N pages and enter a group size. Review the planned page groups before creating files.
- Select Create PDF or Create PDFs, then download each result separately. Review the downloaded pages before sharing. Clear removes the current file and results from this tool.
How page selection works
Page 1 means the first physical page in the file, even when its printed number is different. A cover, Roman-numeral introduction or custom page label does not change these positions.
Extraction accepts positive whole page numbers and inclusive ranges separated by commas. Use ordinary digits, commas and hyphens. Overlaps are included once, and pages remain in source order: 5,1,3-5 produces pages 1,3,4,5.
Splitting every N pages covers the entire source in order. The last group can be shorter. A seven-page document split every three pages produces 1-3, 4-6 and 7. Each group is a separate PDF, with at most 20 results per operation.
The output is a new, limited-feature PDF rather than a preserved copy of the original document. Ordinary supported page appearance is the goal; bookmarks, active links, document labels, tags, attachments and other document-level features are not retained as a supported contract.
Page-group examples
In an eight-page PDF, extracting 1,3-5,8 creates one five-page PDF containing source pages 1,3,4,5,8 in that order.
In a seven-page PDF, splitting every three pages creates three files containing pages 1-3, 4-6 and 7. Splitting every seven pages creates one file containing all seven pages.
A 21-page document split every one page would require 21 files, exceeding the 20-file limit. Choosing two pages per file instead produces 11 files, ending with source page 21.
Supported files and output limits
This tool handles one supported static PDF at a time. It does not unlock protected files, flatten forms, validate or preserve signatures, perform OCR, compress to a target size, split by bookmarks, reorder pages or create ZIP archives. Results can be larger than the source.
Page extraction is not redaction or a guarantee that all hidden or unselected data has been removed. PDF/A, PDF/UA, accessibility certification and universal document fidelity are not promised. Complex files can fail below the stated size limits; review every output before sharing.
Local PDF processing
This tool does not upload your PDF contents or save a project history. File selection, processing and downloads happen in this browser; ordinary site services can still make requests. Clear releases the tool’s references, but does not securely erase your device or recall downloaded files.
Questions about splitting PDFs
Method and sources
- The locally bundled MIT pdf-lib 1.17.1 engine creates fresh PDFs from supported static pages. Read the library license and notice.
- github.comPinned pdf-lib 1.17.1 source: PDFDocument load, copyPages and save
Selections use physical positions starting at 1, not printed numbers or document labels. Extraction deduplicates and retains source order; splitting creates consecutive groups covering the source. Every group becomes a separate PDF, with at most 20 results.
Compatibility checks are conservative, not signature validation or malware scanning. Links become inactive. Forms, signature indicators and non-link annotations are rejected. Bookmarks, page labels, attachments and accessibility tags are outside supported preservation. Page copying is not redaction: hidden or unselected data may remain. No universal fidelity, PDF/A, PDF/UA or accessibility certification is guaranteed.
Processing and explicit downloads happen in this browser, without PDF-content upload or project history. Normal site services may still make requests. Clear releases application references, not secure erasure or recall of downloads.
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