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Documentation Index

Fetch the complete documentation index at: https://docs.blinkpdf.io/llms.txt

Use this file to discover all available pages before exploring further.

Blink PDF is a high-performance REST API that converts Markdown into polished, production-ready PDFs in around 100 milliseconds. Send a POST request with your Markdown content, receive a binary PDF in response — no headless browser, no cold starts, 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 (500 renders/month) to unlimited Scale and 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:
  • ~100ms median render time. No browser launch, no page load, no layout thrash. Your PDF is ready before a Chromium instance would even start.
  • Zero cold starts. The render engine is always warm. Spin up, burst traffic, and scale events don’t add latency.
  • Zero data retention. Your Markdown is processed entirely in memory and purged the moment the PDF is returned. Nothing is logged, stored, or replicated.
  • 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. Font subsetting ensures compact file sizes without sacrificing character coverage.
  • ~30 PDFs/sec per node. High-throughput workloads are a first-class concern, not an afterthought.

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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. 
curl -X POST https://api.blinkpdf.io/v1/render \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "markdown": "# Invoice 0042\n\nHi Jane, thanks for your business!\n\n## What'\''s included\n\n- **Pro plan** — unlimited renders\n- Priority support\n\n**Total: $39** — paid on May 23, 2026.",
    "metadata": { "title": "Invoice 0042" }
  }' \
  --output invoice.pdf
The response arrives with Content-Type: application/pdf and two diagnostic headers — X-Render-Ms (how long the render took in milliseconds) and X-Request-Id (a unique ID for support requests).
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.