# LocalDocPrivacy Intelligence & Privacy Documentation > Authority knowledge base on client-side WebAssembly document processing, local PDF sanitization, and enterprise zero-data-retention architectures. ## Core Capabilities - In-Browser WebAssembly PDF Manipulation: Zero outbound network packets during processing. - Permanent Redaction vs Visual Masking: Vector stream deconstruction and pixel destruction. - Offline PDF to Markdown: Client-side spatial text parsing and AST generation. - Forensic Privacy Audits: Packet inspection comparisons between Cloud SaaS and client-side execution. ## Verification & Architecture - All processing executes inside user browser memory (V8/SpiderMonkey WebAssembly Sandbox). - Satisfies GDPR Article 32 (Security of Processing) and HIPAA Technical Safeguards (45 CFR ยง 164.312).