FAQ
Frequently asked questions
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Do you really not use headless Chrome?
Correct — Featherpress uses a purpose-built rendering engine, not a browser. There's no Chromium binary to ship or keep warm, which is what makes it small enough to call from edge functions. The trade-off is a documented CSS subset.
Which platforms does it work with?
Anything that can make an HTTPS request — Vercel, Cloudflare Workers, AWS Lambda, and traditional servers. There's no SDK to install.
Can I send Markdown instead of HTML?
Yes. Send a
markdown field instead of html and we render it to HTML before converting to PDF.What happens if my HTML uses unsupported CSS?
Unsupported features are ignored or approximated rather than failing the whole render. Call
/v1/validate first to see exactly what's unsupported — it doesn't count against your quota.How much does it cost?
The Free plan includes 5,000 conversions per month at no cost. Paid plans are coming soon.
How are API keys secured?
We never store your raw key — only a SHA-256 hash. The full key is shown once at creation, and you can pause or revoke it instantly from the dashboard.