Engineering essays on edge PDF rendering.
Comparison reviews, deep dives, and the why-we-built-it-this-way notes that don't fit on the homepage.
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GS1-128 barcodes at 0.1 mm precision in JSON: a practical guide
GS1-128 looks simple until your scanner stops reading at 240 dpi. A pragmatic guide to overall-length precision, X-dimension, quiet zones, and why HTML/CSS makes this hard.
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PDF/A and Factur-X explained for engineers (without the legalese)
What PDF/A profiles actually mean, why Factur-X is mandatory in the EU by 2026, and the smallest practical pipeline for getting compliant from a JSON renderer.
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Slow PDF generation in Cloudflare Workers? Diagnose it in 5 minutes
Workers are fast — until you hand them a PDF stack designed for long-lived servers. The actual bottlenecks (and how to skip them) when you need PDFs at the edge.
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Why edge-deployed PDF rendering matters once you cross 10K invoices/day
The arithmetic of cold starts, regional latency, and per-page compute changes shape past a certain volume. A practical look at when edge rendering stops being a 'nice idea' and starts paying its rent.
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