Learning Centre

HIPAA, PHI, and why local processing should be the default for healthcare documents.

A practical workflow to prove whether a PDF tool sends document bytes to a server.

What XMP and Info Dictionary metadata can leak and how to remove hidden fields.

How to evaluate terms, data flow, and safer alternatives for sensitive PDF workflows.

Why black boxes fail and what irreversible redaction requires in real documents.

How to balance PDF size reduction against visual readability and print needs.

Visual vs cryptographic signatures and local signing workflows for private documents.

How to choose no-upload PDF workflows with practical verification steps and trade-off checks.

Controller/processor exposure and why client-side workflows reduce compliance burden.

A practical local-first handling model for matter files, redaction, and metadata hygiene.

How to reduce patient-document exposure during OCR, redaction, and portal uploads.

A repeatable compliance-oriented checklist for irreversible redaction and post-export review.

Compare OCR data-flow trade-offs for scanned PDFs and decide when local should be the default.

A plain-language guide to WASM-powered local processing and offline capability.

How to generate searchable PDFs locally and avoid exposing sensitive scans.

Why random upload tools are risky for legal, financial, HR, and medical PDFs, plus safer local-first handling.

Comparing WebAssembly local processing with traditional cloud-based approaches to document security.

A practical comparison of upload-based and local workflows using privacy, speed, and governance criteria.

A practical status-check explainer for separating local connectivity issues from real outages.

What actually gets compressed in a PDF, why size reduction varies, and how quality trade-offs are introduced.

How scanned images become searchable text, where OCR accuracy fails, and what to validate before use.

How your data stays in-browser. Understand the technology that enables near-native performance.

Using WebGPU for local AI. How Plain leverages your device's GPU for document analysis.

Techniques for processing 500MB+ documents efficiently without overwhelming system memory.

Why local PDF jobs hit memory pressure and how to recover with smaller, more predictable batches.

How WebGPU and WebLLM enable AI-powered features without sending data to external servers.

A practical local workflow for password protection, plus limitations of PDF encryption in shared environments.

Ensuring permanent data removal. A comprehensive guide to securely redacting sensitive information.

Using Plain in high-security environments. Best practices for air-gapped systems and secure facilities.

How to confirm that your files never leave your device using browser DevTools.

Understanding AES-256 local encryption and how to protect sensitive documents on-device.

A practical workflow to separate local connectivity failures from broader service outages.

How domain names resolve to IP addresses and why DNS errors can mimic outages.

How to interpret latency values correctly and avoid false outage conclusions from one slow probe.