# Blink PDF

## Docs

- [Blink PDF API Authentication: Keys and Bearer Tokens](https://docs.blinkpdf.io/api-reference/authentication.md): Authenticate every Blink PDF request with a Bearer token. Learn where to get your API key, how to send it, and what 401 and 403 errors mean.
- [GET /v1/fonts — List Fonts Available in Blink PDF](https://docs.blinkpdf.io/api-reference/fonts.md): Retrieve the full list of fonts available in Blink PDF. Returns a JSON array of font name strings. Never counts toward your render quota.
- [GET /v1/health — Blink PDF API Health Check Endpoint](https://docs.blinkpdf.io/api-reference/health.md): Check Blink PDF API availability with a lightweight health endpoint. No authentication required. Never counts toward rate limits or render quota.
- [Blink PDF API Reference: Base URL, Auth, and Errors](https://docs.blinkpdf.io/api-reference/overview.md): Everything you need to start converting Markdown to professional PDFs. Base URL, endpoints, request format, response headers, and error codes.
- [POST /v1/render — Markdown to PDF Conversion Endpoint](https://docs.blinkpdf.io/api-reference/render.md): Send Markdown content to Blink PDF and receive a binary PDF in ~100ms. Full reference for headers, body parameters, response fields, and code examples.
- [Blink PDF API Authentication: Keys, Headers & Errors](https://docs.blinkpdf.io/authentication.md): Learn how to obtain your Blink PDF API key, pass it securely in request headers, and handle common authentication errors like 401 and 403.
- [Accessibility — PDF/UA-1 & Unicode Support in Blink PDF](https://docs.blinkpdf.io/concepts/accessibility.md): Every Blink PDF output is PDF/UA-1 compliant by default — screen reader ready, full Unicode, color emoji, and font subsetting included on every plan.
- [Markdown Rendering — How Blink PDF Converts Docs](https://docs.blinkpdf.io/concepts/markdown-rendering.md): Blink PDF converts full CommonMark Markdown to professional PDFs in ~100ms — no HTML, CSS, or LaTeX required. Learn how the pipeline works.
- [Zero Retention — Blink PDF's Data Privacy Guarantee](https://docs.blinkpdf.io/concepts/zero-retention.md): Blink PDF processes your Markdown in memory and purges it immediately after rendering. Your content is never stored on disk or used to train models.
- [Document Options: Page Size, Margins & Metadata](https://docs.blinkpdf.io/configuration/document-options.md): Configure page size, orientation, margins, and PDF metadata for every document you render with Blink PDF — all through a single JSON request.
- [Fonts & Layouts: Typography and Column Configuration](https://docs.blinkpdf.io/configuration/fonts-layouts.md): Choose from available fonts, configure multi-column layouts, and control line spacing for polished, professional Blink PDF documents.
- [Headers, Footers & Page Numbers in PDF Renders](https://docs.blinkpdf.io/configuration/headers-footers.md): Add branded headers, informative footers, and automatic page numbers to every page of your Blink PDF documents using dynamic per-page variables.
- [Convert AI and LLM Output to PDF with Blink PDF API](https://docs.blinkpdf.io/guides/ai-llm-workflows.md): Turn OpenAI and Claude Markdown output into professional PDFs in ~100ms. Pass LLM responses directly to Blink PDF — no reformatting needed.
- [Use Blink PDF in n8n, Make, and Zapier Automation Flows](https://docs.blinkpdf.io/guides/automation-tools.md): Connect Blink PDF to n8n, Make (Integromat), and Zapier using a standard HTTP node. No custom integration needed — just configure and go.
- [Batch PDF Generation at Scale with Blink PDF REST API](https://docs.blinkpdf.io/guides/batch-processing.md): Generate thousands of PDFs concurrently using async Python or Node.js. Learn concurrency limits by plan, exponential backoff, and throughput optimization.
- [Generate Invoices and Financial Reports as PDFs Fast](https://docs.blinkpdf.io/guides/invoices-reports.md): Create pixel-perfect invoices and financial reports from Markdown templates. Fill variables, call /v1/render, and receive a professional PDF in ~100ms.
- [Blink PDF FAQ — Plans, Billing & API Integration Help](https://docs.blinkpdf.io/help/faq.md): Answers to the most common questions about Blink PDF — from how it works and who it's for, to billing, privacy, and practical integration tips.
- [Blink PDF Troubleshooting: Fix API Errors & Render Issues](https://docs.blinkpdf.io/help/troubleshooting.md): Fix common Blink PDF integration issues — from 401 auth errors and 429 rate limits to watermarks, slow renders, and payload size problems.
- [Blink PDF: Fast Markdown to PDF API 😘](https://docs.blinkpdf.io/introduction.md): Convert Markdown to professional, accessible PDFs via a single REST endpoint. No Chromium, zero data retention.
- [Blink PDF Enterprise — Dedicated Capacity & Custom SLA](https://docs.blinkpdf.io/plans/enterprise.md): Dedicated capacity, custom SLAs, data residency, and compliance controls for regulated industries and high-volume PDF generation at scale.
- [Blink PDF Pricing Plans — PDF Generation Costs & Tiers](https://docs.blinkpdf.io/plans/pricing.md): From free-tier experiments to enterprise scale — find the Blink PDF plan that fits your volume, budget, and compliance requirements.
- [Blink PDF API Rate Limits, Concurrency & Monthly Quotas](https://docs.blinkpdf.io/plans/rate-limits.md): Understand Blink PDF's per-plan rate limits, concurrency caps, daily quotas, and how to handle 429 responses gracefully in your integration.
- [Quickstart: Generate Your First PDF with Blink PDF](https://docs.blinkpdf.io/quickstart.md): Get an API key, make your first POST /v1/render call, and save a PDF to disk — all in under five minutes with curl, Python, or Node.js.