Blog
Notes from building a rendering API.
Engineering decisions, product tradeoffs, and the occasional postmortem.
engineering
What 'deterministic' actually means for PDF rendering
Same template, same data, same file — every time. Here's what breaks that promise, and what it takes to keep it.
product
Why we don't just email you the PDF
Signed URLs with a TTL are more work to build than an email attachment. Here's why we built them anyway.