Split PDF Logic.
Extract specific pages or split a large document into separate files.Your documents never touch our servers. Total privacy via WebAssembly.
Bank-Grade Privacy
Docs are decrypted and processed strictly within your browser's RAM.
Zero Latency
Skip the upload queue. WASM processing is up to 50x faster than traditional servers.
No Cloud Sync
We have no database. Your documents exist only while this tab is open.
Privacy
Local Worker
Execution
Off-Main Thread
Memory
Auto-Volatile
Mastering Split
Follow our 100% private workflow. Since DocuStitch uses client-side logic, your document data never touches a remote server.
Select PDF
Pick the PDF you want to split. Our tool reads the file locally into your browser's memory using a secure file pointer.
Define Extraction
Select specific page ranges or split the document by chapters. Our engine maps the PDF structure instantly.
Local Extraction
Our high-performance WASM engine extracts the specified pages using your device's own CPU power, not a remote server.
Why Private Processing?
Comparing DocuStitch vs. Standard Online PDF Tools
- 0% Data leakage risk
- WebAssembly RAM execution
- Immediate session wipe
- Server-side caching
- Unencrypted file transit
- Data harvesting risks
How Local Splitting Works
Blob Chunking
Instead of a traditional multipart upload, we create a temporary URL for your file. Our WASM logic reads only the bytes necessary for the split.
CPU Execution
The extraction process happens inside your browser's V8 engine, utilizing WebAssembly to reach near-native speeds.
Memory Pipeline
The resulting PDF is streamed directly to your downloads folder via a local memory blob. No middleman, no storage, no risk.
DocuStitch Extraction Protocol • WebAssembly Powered • docustitch.app
Securely Split PDF Documents Offline
Managing large PDF files often requires extracting specific pages or breaking a document into manageable parts. Whether you're separating a combined tax filing, extracting a specific chapter from an e-book, or isolating a signed contract from a multi-document bundle, our Split PDF tool provides a professional, high-performance solution.
The primary risk with online PDF splitters is the security of your data. Most tools require you to upload your sensitive files to a remote server, where they are processed and stored temporarily. This creates a window of vulnerability for data leaks or unauthorized access. DocuStitch solves this by bringing the processing logic to you. Using WebAssembly (WASM), our splitter runs entirely within your browser's RAM. Your document never leaves your machine, ensuring total data sovereignty.
Our engine supports several extraction modes: pick individual pages, define custom ranges (e.g., 1-5, 10-12), or split the entire document into single-page files. Because the processing is local, there are no file size limits imposed by server bandwidth, and the results are ready for download instantly.
Page Extraction
Select specific pages or ranges with clinical precision. Our visual interface lets you pick exactly what you need.
WASM Performance
Built with Rust and compiled to WebAssembly for near-native file handling speeds directly in your browser.
Zero-Knowledge
A true privacy-first architecture. We don't have a backend storage layer, so your files remain invisible to us.
Mobile Optimized
Split documents on the go. Our responsive engine works flawlessly on tablets and smartphones with zero app installs.
Frequently Asked Questions
Everything you need to know about Split PDF
Is it safe to split my legal documents here?
Is there a limit on file size?
How do I split a range of pages?
Does splitting reduce the quality of the PDF?
Knowledge Hub
Stop Uploading. Start Processing Locally.
Join thousands of professionals who trust DocuStitch for mission-critical PDF operations without the risk of cloud leaks.