PureTools
PDF Splitter
Split any PDF by custom page ranges, fixed chunks, or odd/even pages, with visual previews. No upload, no watermark, 100% private.
Drop your PDF here
or , max 100 MB
Page preview
Each comma-separated group creates a separate PDF file.
Creates two PDFs: one with all odd-numbered pages (1, 3, 5…) and one with all even-numbered pages (2, 4, 6…). Useful for descanning double-sided documents.
Processing…
How to use the PDF Splitter
The PDF Splitter offers three distinct modes to cover every document separation scenario. Upload your PDF, choose a mode, configure the parameters, and download individual segments or a single ZIP archive, all without sending a single byte to a server.
- Upload your PDF, drag and drop the file onto the upload zone, or click "browse files". Files up to 100 MB are accepted.
- Review the page previews, thumbnail images of your pages render automatically so you can identify which pages to extract before splitting.
- Choose a split mode, select "By Page Range" for precise custom extraction, "Every N Pages" for equal-size chunks, or "Odd / Even" to separate interleaved pages.
- Enter your parameters, for page range mode, type ranges like
1-3, 5, 7-9; for chunk mode, enter the number of pages per segment. - Set a filename prefix, the output files will use this prefix (default: "split") so they sort together in your downloads folder.
- Click "Split PDF", the operation runs in a background worker thread so your browser stays fully responsive. Download individual files or use the ZIP button to grab all segments at once.
Understanding PDF page ranges
Page ranges use 1-based numbering, the first page in a PDF is always page 1. A range written as 3-7 extracts pages 3, 4, 5, 6 and 7 into a single PDF. Individual pages are specified as a single number. Multiple ranges are comma-separated: 1-3, 5, 8-10 produces three separate output files. Reversed ranges (e.g., 10-5) are automatically corrected. Page numbers beyond the document length are clamped to the last page. The page count shown in the file bar and thumbnails is your reference, use the Image Compressor to reduce large images before embedding them in a PDF workflow.
When to use each split mode
Use By Page Range when you need specific, non-consecutive pages, extracting chapters from an ebook, pulling invoice pages from a bulk export, or isolating a signature page. Use Every N Pages when you want equal-size segments for batch processing or to distribute a large report in chapters of fixed length. Use Odd / Even after scanning a duplex document one side at a time, this mode separates the two sets so you can recombine them in the correct order using the PDF Merger.
Frequently asked questions
Are my PDF files uploaded to a server?
No. Every PDF you open stays entirely on your device. The split operation runs inside your browser and no file data is ever sent to PureTools or any third party. You can disconnect from the internet after the page loads and the tool will still work perfectly, your files never leave your device. Your data is never used to train AI models or improve machine learning systems.
What split modes are available?
The tool offers three split modes. By Page Range lets you type custom ranges like 1-3, 5, 7-9, each comma-separated group becomes a separate PDF. Every N Pages splits the document into equal chunks of N consecutive pages, ideal for dividing a long report into sections. Odd / Even Pages creates two PDFs: one containing all odd-numbered pages and one with all even-numbered pages, which is useful for descanning double-sided documents or separating interleaved scans.
How do I specify page ranges?
Use the By Page Range mode and type your ranges in the input field. Separate individual pages or ranges with commas. Use a hyphen to define a range. For example: 1-3, 5, 7-9 creates three output files, one with pages 1 to 3, one with page 5 only, and one with pages 7 to 9. Page numbers are 1-based (the first page is page 1). The total page count is displayed above the preview grid so you can reference it easily when crafting your ranges.
Is there a file size limit?
Yes, each PDF file must be 100 MB or smaller. This limit exists to protect your device memory and keep processing fast. The browser must hold the entire PDF in RAM during the split operation. Most office documents, presentation exports and scanned reports fall well under this limit. If your PDF exceeds 100 MB, try splitting it in a dedicated desktop tool first, then process each part separately. Data is erased when you close the tab, nothing is persisted after your session.
Does splitting reduce the quality of my PDF?
No. The tool copies pages exactly as they are, fonts, images, graphics, annotations and embedded content are all preserved without any modification. There is absolutely no quality loss of any kind. No watermark is ever added to the output files, unlike most online PDF splitting services. The tool copies selected PDF pages into new files instead of taking screenshots, so text, vectors and embedded images keep their original quality.
Can I split a password-protected PDF?
The tool will attempt to open password-protected PDFs using a blank password, which works for PDFs that have restrictions (printing, copying) but no open password. If your PDF requires a password to open, the split will fail with an error message. In that case, remove the password restriction with a dedicated PDF password tool first, then return here to split. PDFs that only restrict printing or copying, but not opening, are handled automatically without any user input.
How does the ZIP download work?
When a split produces two or more output files, a "Download all as ZIP" button appears at the top of the results. This button downloads all segments as a single ZIP archive built entirely in your browser, no server involved. The ZIP uses the STORE method (no additional compression) since PDF files are already internally compressed and further compression would add processing time without meaningful size savings. You can also download each segment individually using its dedicated Download button.
Does the tool work offline?
Yes, after your first visit to this page. PureTools uses a service worker to cache the tool locally. On subsequent visits, even with no internet connection, the page loads from your browser cache and the split runs entirely offline. Page thumbnail previews use the PDF.js library from a CDN, which is cached after first load. If you are offline and have not loaded this page before, previews will be unavailable but splitting will still work correctly, just without visual page thumbnails. For the most reliable offline use, open the merger once while online, then keep the browser cache intact before using it without a connection.
Is my data erased when I close the tab?
Yes. PureTools stores only your preferred split mode, page range, chunk size and output filename prefix in sessionStorage, which is cleared automatically when you close or refresh the tab. Your PDF file is held in browser memory only for the duration of the split operation and is never written to disk by this tool. Closing the tab clears everything instantly, no trace of your files or choices remains on the device beyond your current session.