Knowledge Base

Learn WASM PDF.

Open-source technical wisdom on document engineering, privacy, and high-performance browser computing.

PDF Internals

Understanding XREFs, Object Streams, and the physical structure of a PDF file.

Explore Topic

WASM Security

How the browser sandbox protects your files during local processing.

Explore Topic

OCR Mechanics

The mathematics of optical character recognition in a serverless environment.

Explore Topic

Document Sanitization

Best practices for metadata removal and permanent byte-level redaction.

Explore Topic

Technical Standards maintained by DocuStitch Engineering

W3C STANDARDSPDF ASSOCIATIONWASM WEBCORE

Footer

DocuStitch.

The professional standard for private document engineering. By executing WebAssembly (WASM) locally in your browser's RAM, DocuStitch ensures your sensitive data never leaves your device. Enterprise-grade PDF tools with zero-knowledge architecture.

Stay Securely Informed

Get updates on new WASM tools and privacy standards.

Core Utilities

  • Merge PDF
  • Split Pages
  • Compress PDF
  • Local OCR
  • Edit PDF

Converters

  • Images to PDF
  • PDF to Word
  • PDF to Excel
  • Flatten PDF
  • Grayscale PDF

Authority

  • Technical Wiki
  • Workflow Guides
  • Privacy Blog
  • WASM Stack

Company

  • The Privacy Mission
  • All Case Studies
  • Privacy Policy
  • Terms of Service
  • Contact Support

© 2026 DocuStitch — Built for a Private Web.

SOC2 Compliant Logic
AES-256 Local RAM
+2k

Trusted by 2,000+
Privacy Professionals