PolyDoc
HTML to PDF & screenshot API.
PolyDoc is a REST API for converting HTML strings or URLs into PDFs, capturing website screenshots, and generating EU e-invoices. It targets document generation workflows such as invoices, reports, tickets, statements, and certificates, where output needs to be produced programmatically and delivered into existing systems.
PDF generation uses a Chromium-based engine with JavaScript and modern CSS support, and covers PDF/A archival levels, PDF/UA tagged output, encryption, watermarks, outlines, metadata, and layout controls. E-invoicing supports Factur-X and ZUGFeRD hybrid invoices with embedded XML. Screenshots are available in PNG, JPEG, and WebP with full-page or clipped regions and configurable viewports. The API also offers HTML templates with Liquid variables, webhooks with signed payloads, presigned URL delivery to cloud storage, sandbox conversions, a dashboard with conversion analytics, and integrations with automation tools such as Make, Zapier, and n8n.
PolyDoc is aimed at developers and teams automating document output. It is packaged with a free plan requiring no credit card, paid plans tiered by monthly conversion volume with annual billing options, and a custom tier for higher volumes; sandbox conversions do not count toward quota.
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