What is PDF Split?
PDF Split breaks one PDF into smaller files. You can split by single page, custom page range, or chapter. Nothing gets uploaded. Drop a PDF, mark the splits, and the tool creates one file per output range. Everything runs in your browser. The original page contents stay the same in each piece. Fonts, vector graphics, hyperlinks, form fields, and outlines are kept byte-for-byte. The source file never goes to our servers. Range syntax works the way you expect. Type 1-3, 5, 7-10, or 12. You can also use the each-page mode to get one PDF per page. Lawyers extract exhibit pages from long discovery PDFs. Accountants split multi-client tax dumps into per-client folders. Publishers separate book chapters for sale or review. Students pull just the assigned reading pages from a textbook PDF. IT teams chunk large reports into pieces under the 25 MB Gmail cap.
When should I use this tool?
- Extract a single signed page from a long contract.
- Separate chapters of a scanned book into single PDF files.
- Pull only the expense receipts from a combined bank export.
- Split a multi-invoice PDF into one file per customer.
How do I split a PDF into separate files online?
- 1Click to upload the PDF you want to split.
- 2Pick a split mode: every page, fixed ranges, or custom page numbers.
- 3Enter page ranges like 1-3, 5, 8-10 if using custom mode.
- 4Click Split and wait while each output PDF is built locally.
- 5Download the results one by one or as a single ZIP archive.
Frequently asked questions
Does splitting upload my PDF anywhere?
No. WikiPlus PDF Split runs entirely inside your browser tab without transmitting a single byte of your document to any server. When you open a PDF file in the tool, the browser reads its bytes from your local file system into tab memory using the FileReader API. The pdf-lib library parses the document structure and extracts the requested pages — all of this happens within the same sandboxed browser process on your own device. The resulting output PDFs are assembled in local memory and delivered to your downloads folder through the browser's native save mechanism. No copy of your file is created on a WikiPlus server at any point. No filename, file size, page count, or content metadata is logged in any analytics or monitoring system. This matters for the types of documents people most commonly need to split: signed NDAs and contracts contain confidential commercial terms; medical records contain protected health information; court filings may be under seal; bank statements list account numbers. Uploading these to a server-based splitter creates a record on a third-party system that you cannot independently audit or retract. WikiPlus eliminates that risk entirely by keeping every operation local. You can verify this yourself: open your browser's developer tools, switch to the Network panel, and watch for outbound requests while splitting a PDF. You will see no network request that carries your file data. For additional certainty, load the page once to cache the page assets, then disconnect your device from the internet and run the split. It completes successfully in fully offline mode, which proves nothing depends on a server connection. Tip: after downloading the split output files, verify that each piece opens correctly in your default PDF viewer before deleting or archiving the source file.
How do I specify custom page ranges?
WikiPlus PDF Split accepts page ranges in a simple comma-separated syntax that covers all practical splitting scenarios. Type your ranges into the custom-range input field and separate each range with a comma. A hyphenated pair like 1-5 extracts pages one through five as a single output file. A single number like 8 extracts just page eight on its own. A combination like 1-3, 5, 8-10, 12 produces four separate output PDFs: one containing pages one through three, one containing only page five, one containing pages eight through ten, and one containing page twelve. Page numbers follow the document's visible sequence starting from page one — they correspond to the numbers shown in the PDF viewer's page counter, not to the internal PDF object indices, which are invisible to readers. If you specify a range that exceeds the document's total page count, the tool flags the invalid range in red before the split runs so you can correct it without wasting time. Open-ended ranges (for example, 5- meaning page five to the end) are not supported in the current release — you must specify both endpoints. For the common task of extracting a contiguous block from the middle of a document, type the first and last page numbers of that block separated by a hyphen. For extracting a handful of non-contiguous pages, list them individually separated by commas. The split creates one output file per range entry, preserving all text layers, fonts, images, hyperlinks, and annotations from the source pages exactly as they appeared in the original. Tip: for documents where pages are logically grouped by section (chapters, exhibits, departments), note the first and last page number of each section before typing the range strings to avoid off-by-one errors.
Can I split a password-protected PDF?
Not directly in its encrypted state. If the source PDF has a user-open password, the tool cannot read the page content because the content streams are encrypted at the byte level — decryption requires the password key, and without it the page data is unreadable ciphertext that cannot be split into meaningful output. If the source PDF has an owner password (a permissions restriction preventing printing, copying, or editing) but no user-open password, some PDF readers allow opening the file normally while blocking certain viewer actions, and the WikiPlus splitter can often read and split these files because owner restrictions are viewer-enforced conventions, not true content encryption. For files with a user-open password you know, the correct workflow is two steps: first, use WikiPlus PDF Unlock with the password to produce a decrypted copy of the file — this runs locally in your browser and does not transmit the password or file contents anywhere. Second, load the unlocked copy into WikiPlus PDF Split and proceed with your chosen split mode. This two-step workflow is intentional. WikiPlus never attempts to bypass encryption using brute-force or dictionary attacks — the tool is designed only to process documents you are authorized to open. The password you enter in PDF Unlock is consumed immediately in browser memory to decrypt the local file copy and is never transmitted, stored, or logged. The resulting unlocked copy is saved only to your device. If the source file lives on a shared network drive or cloud folder, the original encrypted copy in that location remains untouched — only your local decrypted copy is affected. Tip: after unlocking, save the decrypted copy to a location you control and remember to delete it when the split task is complete if you do not want an unencrypted copy persisting on your device.
Is the PDF splitter free to use?
Yes, completely and permanently. WikiPlus PDF Split is free with no registration, no email verification, no credit card, no trial period, and no hidden upgrade gate behind a free tier. Every feature of the splitter is available from the first visit without creating an account: split by every page, split by fixed intervals (every N pages), split by custom page ranges, and download all outputs as a single ZIP archive. There are no daily, weekly, or monthly usage caps. There is no file size limit imposed by a paywall — the practical upper limit is your browser's available RAM, not an artificial restriction. Output files are clean PDFs with no WikiPlus watermarks, no added branding pages, and no embedded metadata attributing the split to this tool. The tool is sustained by simple display advertising shown on the page — the ads fund free operation without restricting the tool's functionality for any user on any visit. This model differs from competing PDF splitters that offer a free tier with limitations: some cap daily splits at two or three files, some restrict the file size on free plans to 10–25 MB, and some add watermarks to the first or last page of each output. WikiPlus imposes none of these restrictions. A student splitting a 400-page textbook PDF into individual chapters, a paralegal splitting a discovery PDF into per-exhibit files, and a small business owner splitting a multi-invoice PDF into per-client files all get the same unlimited access. Tip: for PDF files larger than 50 MB, consider running WikiPlus PDF Compress on the source file first — a smaller source PDF splits faster and produces smaller output files that are easier to email or upload to document portals.
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