Best URL to PDF APIs in 2026
We compared every major way to convert URLs and HTML to PDFs — from dedicated APIs to self-hosted Puppeteer to legacy wkhtmltopdf.
Last updated: April 2026
Quick Comparison
Side-by-side capabilities at a glance.
Detailed Reviews
An honest look at each option.
1. Rendex
RecommendedRendering API that converts URLs and HTML to PDF on Cloudflare's edge. Full page configuration, batch support, and MCP server.
Strengths
- URL and HTML input — identical PDF output
- Full page config: size, margins, orientation, headers/footers
- Batch PDF generation — up to 500 URLs per request
- MCP server for AI agent PDF workflows
- Edge-deployed, sub-3s generation, 100 free/month
Weaknesses
- New entrant — less established track record
Best overall for URL-to-PDF. Full config, HTML input, batch, lowest pricing, and MCP support.
2. PDFShift
Dedicated HTML/URL to PDF API. Established player in PDF generation, focused specifically on high-quality PDF conversion.
Strengths
- Purpose-built for PDF — deep expertise
- Good page configuration
- Custom headers/footers
- Watermark support
Weaknesses
- Only 500 at $9/mo vs Rendex 10K at $69/mo
- No batch processing
- No MCP or AI agent support
- PDF only — no screenshot output
Solid PDF-focused service, but significantly fewer conversions per dollar. Good for low-volume PDF-only workflows.
3. Puppeteer (Self-Hosted)
Google's headless Chrome library. Use page.pdf() with full control over page configuration and rendering.
Strengths
- Full Chromium — pixel-perfect PDFs
- Complete control over page config
- Free and open source
- Custom headers/footers with HTML
Weaknesses
- Requires Chromium (~400 MB)
- High memory per instance
- Cold starts in serverless
- You manage scaling and crashes
Best for teams with infra who need complete control. Impractical at high volume.
4. ScreenshotOne
Screenshot API with PDF output as a format option. Primarily designed for URL screenshots.
Strengths
- Full Chromium rendering
- PDF alongside screenshot formats
- Enterprise features — batch, webhooks, S3
- 7 language SDKs
Weaknesses
- 4x more expensive than Rendex
- PDF is secondary, not primary
- No edge deployment
- Only 100 free/month
Capable of PDF generation but at premium pricing. Better value with Rendex.
5. wkhtmltopdf
Open-source CLI converting HTML to PDF using an older WebKit engine. Widely used but unmaintained since 2020.
Strengths
- Free and open source
- Well-documented config options
- Lightweight vs Chromium
- Wide language bindings
Weaknesses
- Unmaintained since 2020
- Old WebKit — no Flexbox, no Grid
- Poor JavaScript support
- Security vulnerabilities
- Rendering quality below Chromium
Legacy tool — do not choose for new projects. Modern CSS doesn't render. Migrate to Chromium-based.
Related Use Cases
Frequently Asked Questions
What is the best API for converting URLs to PDFs?
Rendex. Full page configuration (A4, Letter, custom, margins, headers/footers), HTML input, batch, $6.90/1K, 100 free/month.
Should I use wkhtmltopdf for new projects?
No. Unmaintained since 2020, old WebKit with no Flexbox/Grid. Use Rendex or Puppeteer.
Can I generate PDFs from HTML without a URL?
Yes. Rendex, PDFShift, and Puppeteer accept raw HTML. Pass a template, get a PDF — no hosted page needed.
Ready to generate PDFs?
100 free conversions/month. No credit card required.
Explore More Comparisons
See how Rendex compares across the screenshot API landscape.