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Blink PDF is a high-performance REST API that converts Markdown into polished, production-ready PDFs without a browser. Send a POST request with your Markdown content, receive a binary PDF in response — no headless browser, no stored data. Whether you’re generating invoices, reports, or AI-authored documents, Blink PDF slots into any stack in minutes.

Quickstart

Make your first API call and download a PDF in under five minutes.

API Reference

Full reference for the POST /v1/render endpoint, request body, and response headers.

AI & LLM Workflows

Pipe OpenAI or Claude output directly into Blink PDF for instant document generation.

Plans & Pricing

From a free tier (250 render units/month) to Pro, Business, and dedicated Enterprise plans.
Blink PDF uses a purpose-built render engine — there is no Chromium anywhere in the pipeline. That design unlocks a set of properties that browser-based renderers simply cannot offer:
  • Low-latency Markdown rendering. No browser launch, no page load, no layout thrash.
  • No browser startup overhead. The render engine avoids spawning Chromium for each document.
  • 15 curated themes. Pick a design preset with one field, then override anything per request. See Themes.
  • Input never persisted. Your Markdown is processed in memory and never stored; generated PDFs and staged assets are purged within 24 hours. See Zero Retention.
  • Reusable image assets. Stage images once and reference them anywhere as blink://asset/<id> handles — they don’t count toward your request size.
  • PDF/UA-1 accessibility. Every PDF Blink generates is tagged for screen readers and passes accessibility audits out of the box.
  • Full Unicode and color emoji support. Font subsetting ensures compact file sizes without sacrificing character coverage.

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Make your first API call

Send a POST request to https://api.blinkpdf.io/v1/render with your Markdown in the request body. The response is a raw PDF binary you can stream directly to your users or save to disk.
The response arrives with Content-Type: application/pdf plus render-status and usage headers — X-Request-Id (include it when emailing [email protected]), X-Render-Status (ok or degraded), X-Render-Rendered-As-Requested, optional X-Render-Diagnostics (base64url-encoded JSON when the renderer raised issues), X-BlinkPDF-Billing (whether the render was billed) with X-BlinkPDF-Usage-Event-Id, and X-BlinkPDF-Usage-* (your render-unit usage against the plan). See the API reference for the full list.
Ready to get your API key and try it live? Head to the Quickstart to be up and running in under five minutes.

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Integrations

Blink PDF works wherever HTTP works. First-class integration guides are available for OpenAI, Claude, n8n, Make, Zapier, Notion, Obsidian, and Tiptap — so you can add PDF generation to your existing automation or content workflow without writing infrastructure code.