Split PDF Files Online Free – Extract Pages Privately in Your Browser
Extract specific pages, page ranges, or split an entire PDF document into individual files directly in your web browser. Built for confidentiality and speed, your sensitive legal agreements, bank statements, and tax forms never leave your computer or transmit over the network.
Drop a PDF file here to split
Click to browse, drag and drop, or paste from clipboard
Select any PDF document. Extract ranges or split every page. Processed entirely in your browser.
Document Name
0 pages • 0 KB
Separate single pages or ranges with commas. Example: 1-3, 5
Every page in this document will be extracted as an individual PDF file and packaged together in a single ZIP archive for instant download.
How to use Split PDF
- 1 Select or drop your PDF document into the in-browser file dropzone.
- 2 Select your preferred splitting mode: Extract Range (e.g. 1-2, 4), Single Page, or Split All Pages into separate documents.
- 3 Enter your desired page numbers or page ranges in the input field.
- 4 Click "Split & Download PDF" to extract your document immediately in your browser tab without server queues or watermarks.
What it does — and what it doesn't
Uses client-side PDF document parsing via the actively maintained @cantoo/pdf-lib engine. When you load a document, its object catalog, page cross-reference tables, and font streams are read into local browser memory. When extracting a range, only the requested page objects and their required font and vector dependencies are copied into a newly constructed PDF catalog. The extracted document is rendered into an in-memory Blob for instant saving.
Limits and browser boundaries
- Password protection: encrypted and password-protected PDF files cannot be split without decryption and trigger an explicit, helpful error message.
- Large document advisory: documents over 100 MB trigger an in-browser memory warning to safeguard mobile devices from memory termination.
- Non-linear page ranges: entering page numbers higher than the document total page count displays immediate inline validation.
Verified Test Lab Measurements
Real numbers recorded in automated browser testing (docs/test-results/split-pdf.json).
| Fixture / Scenario | Input Size | Output / Result | Duration |
|---|
Client-Side Privacy Proof
All computation executes strictly inside your device CPU and GPU memory. Your file bytes, photos, and document text are never uploaded or transmitted to any server.
Verify it yourself in 5 seconds:
- Press F12 (or right click → Inspect) and switch to the Network tab.
- Drop your file into the tool above and click process.
- Confirm that zero outbound requests or file payloads leave your computer.
Frequently asked questions
Are my confidential documents uploaded to any remote server?
No. All PDF page parsing, copying, and file packaging take place entirely inside your local web browser. You can verify in your browser DevTools Network panel that zero document bytes or text content are ever uploaded to any server.
How do I specify multiple pages or non-continuous page ranges?
You can use standard comma and hyphen notation in the Extract Range field. For example, typing "1-3, 5" extracts the first three pages together with page five into a single combined document. The tool automatically validates all page numbers against your document total page count.
Can I split all pages in a PDF at once into separate files?
Yes. Select the "Split All Pages" mode. Every single page in your document will be separated into an individual PDF file (e.g. filename-page-1.pdf, filename-page-2.pdf) and bundled into a clean, uncompressed ZIP archive for instant one-click downloading.
What happens if my PDF document is encrypted or password-protected?
If an encrypted or password-protected PDF is dropped into the tool, an explicit error notice is immediately displayed explaining that the document is protected. For your privacy and security, password encryption must be removed before splitting.
What were the verified processing speed and file size measurements in the test lab?
In our verified test lab using a 4-page source PDF (981 bytes), extracting pages 1-2 produced a clean 2-page document of 780 bytes in just 12 milliseconds. Splitting all 4 pages into individual separate PDF files and packaging them into a ZIP archive (3,122 bytes) completed in 8 milliseconds with zero network requests.