PolyDoc

PolyDoc vs Alternatives

See how PolyDoc compares to other HTML to PDF solutions

There are many tools for converting HTML to PDF, from open-source libraries to commercial APIs. Here is how PolyDoc compares across features, capabilities, and pricing.

The table below is a snapshot based on our research as of . It does not reflect product or pricing changes after that date; always confirm current capabilities on each vendor's site.

FeaturePolyDocGotenbergDocRaptorPDFShifthtml2pdf.appAPI2PDFPuppeteer / PlaywrightwkhtmltopdfWeasyPrintPrince XML
Rendering EngineChromiumChromium + LibreOfficePrince XMLChromiumChromiumChrome + LibreOffice + wkhtmltopdfChromiumWebKit (Qt)Custom (CSS-based)Custom (Prince)
DeploymentSaaSSelf-hostedSaaSSaaSSaaSSaaSSelf-hosted (library)Self-hosted (CLI)Self-hosted (library)Self-hosted (license)
PricingFree tier, from $9/moFree (open-source)From $15/moFrom $9/moPay-per-usePay-per-useFree (open-source)Free (open-source)Free (open-source)From $495 desktop / $3,800 server (one-time)
HTML to PDF
HTML to Screenshot
Screenshot FormatsPNG, JPEG, WebPPNG, JPEG, WebPN/AN/APNGPNG (Chrome)PNG, JPEG, WebPPNG, JPEG, BMP, TIFFN/AN/A
PDF/A Archival
E-Invoicing (Factur-X / ZUGFeRD)
PDF Encryption
Watermarks
PDF Metadata
PDF outline / bookmarks
Tagged / Accessible PDFs
Advanced print layouts (Paged.js, etc.)Docs + your HTMLVia polyfillsVia polyfillsVia polyfillsVia polyfillsVia polyfills
JavaScript Support
Template Management
Webhook Delivery
Upload to your storage (presigned URL)Presigned URL (BYO)
Dashboard & Playground
Sandbox Mode
Supported   Partial   Not supported

Detailed Comparison

PolyDoc vs Gotenberg

Chromium + LibreOffice · Self-hosted · Free (open-source)

Open-source, Docker-based document conversion API. Supports Chromium and LibreOffice engines and optional async delivery via webhooks. Requires self-hosting and infrastructure management.

What PolyDoc adds:

  • E-Invoicing (Factur-X / ZUGFeRD)
  • PDF/A archival with VeraPDF verification
  • Dashboard with playground & analytics
  • Template management with Liquid syntax
  • Sandbox mode for testing
  • Your cloud (presigned URL)
  • PDF encryption
  • Text & image watermarks

PolyDoc vs DocRaptor

Prince XML · SaaS · From $15/mo

HTML to PDF API powered by Prince XML. Strong CSS Paged Media support and PDF profiles (e.g. PDF/A, PDF/UA) via Prince options, with no third-party validation guarantee. Async jobs can POST results to a callback URL. No screenshot API; different rendering model from browsers.

What PolyDoc adds:

  • E-Invoicing (Factur-X / ZUGFeRD)
  • PDF/A archival with VeraPDF verification
  • Dashboard with playground & analytics
  • Template management with Liquid syntax
  • Screenshot capture (PNG, JPEG, WebP)
  • Webhook delivery with HMAC signing
  • Your cloud (presigned URL)

PolyDoc vs PDFShift

Chromium · SaaS · From $9/mo

HTML to PDF API using Chromium. Focused on PDF conversion with basic post-processing. No screenshot support or template management.

What PolyDoc adds:

  • E-Invoicing (Factur-X / ZUGFeRD)
  • PDF/A archival with VeraPDF verification
  • Dashboard with playground & analytics
  • Template management with Liquid syntax
  • Screenshot capture (PNG, JPEG, WebP)
  • Your cloud (presigned URL)

PolyDoc vs html2pdf.app

Chromium · SaaS · Pay-per-use

Simple HTML to PDF and screenshot API. Minimal feature set focused on basic conversion with pay-per-use pricing.

What PolyDoc adds:

  • E-Invoicing (Factur-X / ZUGFeRD)
  • PDF/A archival with VeraPDF verification
  • Dashboard with playground & analytics
  • Template management with Liquid syntax
  • Sandbox mode for testing
  • Webhook delivery with HMAC signing
  • Your cloud (presigned URL)
  • PDF encryption
  • Text & image watermarks

PolyDoc vs API2PDF

Chrome + LibreOffice + wkhtmltopdf · SaaS · Pay-per-use

Pay-per-use PDF API with Chrome, LibreOffice, and wkhtmltopdf routes; separate Chrome routes cover HTML or URL screenshots. No template management or built-in PDF post-processing (encryption, watermarks, etc.).

What PolyDoc adds:

  • E-Invoicing (Factur-X / ZUGFeRD)
  • PDF/A archival with VeraPDF verification
  • Dashboard with playground & analytics
  • Template management with Liquid syntax
  • Sandbox mode for testing
  • Webhook delivery with HMAC signing
  • Your cloud (presigned URL)
  • PDF encryption
  • Text & image watermarks

PolyDoc vs Puppeteer / Playwright

Chromium · Self-hosted (library) · Free (open-source)

Browser automation libraries for Node.js. Powerful but require building your own API, scaling, and infrastructure. No built-in PDF post-processing.

What PolyDoc adds:

  • E-Invoicing (Factur-X / ZUGFeRD)
  • PDF/A archival with VeraPDF verification
  • Dashboard with playground & analytics
  • Template management with Liquid syntax
  • Sandbox mode for testing
  • Webhook delivery with HMAC signing
  • Your cloud (presigned URL)
  • PDF encryption
  • Text & image watermarks

PolyDoc vs wkhtmltopdf

WebKit (Qt) · Self-hosted (CLI) · Free (open-source)

Legacy CLI tool using an outdated Qt WebKit engine. No longer actively maintained. Poor support for modern CSS and JavaScript.

What PolyDoc adds:

  • E-Invoicing (Factur-X / ZUGFeRD)
  • PDF/A archival with VeraPDF verification
  • Dashboard with playground & analytics
  • Template management with Liquid syntax
  • Sandbox mode for testing
  • Webhook delivery with HMAC signing
  • Your cloud (presigned URL)
  • PDF encryption
  • Text & image watermarks

PolyDoc vs WeasyPrint

Custom (CSS-based) · Self-hosted (library) · Free (open-source)

Python library with its own CSS rendering engine. Strong CSS Paged Media support but no JavaScript execution and no screenshot capability.

What PolyDoc adds:

  • E-Invoicing (Factur-X / ZUGFeRD)
  • PDF/A archival with VeraPDF verification
  • Dashboard with playground & analytics
  • Template management with Liquid syntax
  • Screenshot capture (PNG, JPEG, WebP)
  • Sandbox mode for testing
  • Webhook delivery with HMAC signing
  • Your cloud (presigned URL)
  • PDF encryption
  • Text & image watermarks

PolyDoc vs Prince XML

Custom (Prince) · Self-hosted (license) · From $495 desktop / $3,800 server (one-time)

Commercial HTML/CSS to PDF converter with industry-leading CSS Paged Media support. Perpetual licensing (desktop and server tiers). No SaaS offering or screenshot API.

What PolyDoc adds:

  • E-Invoicing (Factur-X / ZUGFeRD)
  • Dashboard with playground & analytics
  • Template management with Liquid syntax
  • Screenshot capture (PNG, JPEG, WebP)
  • Sandbox mode for testing
  • Webhook delivery with HMAC signing
  • Your cloud (presigned URL)