Iurii Uses: #PDF

pi-pi.ee — B2B Deal & Document Portal

Internal sales portal that turns a wholesale deal into a full set of trade paperwork — pro forma, contract, commercial invoice, packing list, CMR and more —

pi-pi.ee — i18n B2B Presentation PDF Generator

On-demand PDF presentation generator for 31 European markets — one codebase, one URL pattern, streamed directly from a Next.js route handler with zero storage

pi-pi.ee — B2B E-commerce for Waterless Urinal Systems

i18n B2B e-commerce platform for waterless urinal products across 32 European countries with automated VAT handling, PDF invoicing, and CRM integration.

Pikkuna — E-commerce for Vinyl Curtains & PVC Products

International e-commerce platform with 30 locales, product configurators, AI chatbot, and fully automated order flow: Stripe → Zoho CRM → Airtable → Mailgun →

HTPBE? — Has This PDF Been Edited?

SaaS platform for PDF authenticity verification with a public REST API.

Batch PDF generation in Node.js without OOM: concurrency limits, back-pressure, releasing renderers between docs, and why Promise.all(map) fails at scale.

AI document processing in production: full PDF pipeline — OCR fallbacks, structured output, validation, cost at scale. Beyond naive GPT calls.

Detect tampered PDFs using xref table analysis, metadata mismatches, orphaned objects, and font changes — 7 forensic markers explained with TypeScript code.

Puppeteer vs @react-pdf/renderer for Node.js PDF generation, decided by production use, not benchmarks: which survives Vercel's serverless limits, which