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OpenHTMLtoPDF

Free#23 of 31 in PDF SDKs

OpenHTMLtoPDF: A focused JVM library for HTML-based PDF generation, accessibility, and PDF/A output. Ranked #23 of 31 in PDF SDKs by our editors (6.8/10); pricing: Free plan; best for free Java HTML-to-PDF generation.

6.8/10Editor score

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OpenHTMLtoPDF6.8 Visit OpenHTMLtoPDF

At a glance

Editor score
6.8 / 10
Pricing
Free plan
Best for
Free Java HTML-to-PDF generation
Free plan
Yes
Paid from
Free
Deployment model
Server-side
Facts checked
20 Sep 2026

Where it wins
- Open-source Java library with PDF and image output
- Supports accessible PDF, PDF/A, forms, and file embedding
- Adds SVG, MathML, font fallback, RTL, and Java2D support
Where it doesn't
- Does not execute JavaScript
- Does not implement modern layouts such as flexbox and grid
- Focused on rendering rather than broad PDF manipulation

Our verdict on OpenHTMLtoPDF

OpenHTMLtoPDF is an open-source, pure-Java library for developers building server-side document-generation workflows on the JVM. It renders well-formed XML/XHTML and some HTML5 using CSS 2.1 and later layout features, producing PDF or image output. The library supports Java and other JVM languages, runs with tested OpenJDK 8, 11, and 17 environments, and is compatible with Google App Engine Java environments. Its free plan and open-source model suit teams that want HTML-based document generation without a paid product tier.

Its strongest capability is the range of document-output requirements covered around HTML rendering. PDFBox-based rendering supports PDF generation, while additional features include PDF/A-compliant output, accessible PDF generation for PDF/UA, WCAG, and Section 508, PDF form controls, file embedding, and Java2D output. SVG and MathML plugins extend document content, and font fallback, custom fonts, RTL, and bidirectional text support help with varied document designs. These capabilities make it a practical fit for JVM applications that need structured, accessible, or archival documents from controlled HTML and XHTML templates.

The main trade-off is scope. OpenHTMLtoPDF is not a web browser: it does not execute JavaScript and does not implement many modern layout standards, including flexbox and grid. It is therefore better suited to predictable server-side templates than browser-dependent pages or workflows requiring extensive post-generation PDF manipulation. Choose it when free, open-source HTML-to-PDF generation is the priority, particularly with PDF/A, accessibility, fonts, forms, or JVM deployment. Choose an alternative when browser-level rendering or broader PDF operations are central requirements.

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OpenHTMLtoPDF pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on github.com

OpenHTMLtoPDF fact sheet

Free plan	Yes
Paid from	Free
PDF operations	HTML/XHTML rendering, PDF generation, image output, PDF/A generation, accessible PDF generation, form controls, file embedding, and Java2D rendering
Supported platforms	JVM; tested with OpenJDK 8, 11 and 17; compatible with Google App Engine Java environments
Language coverage	Java and other JVM languages
Deployment model	Server-side
Annotation tools	Not verified
Commercial license	Yes
Deployment	Self-hosted
Support	Docs
Built for	Solo, Small business, Mid-market, Enterprise (editorial estimate)
Pricing	Free plan
Website	github.com
Facts checked	20 Sep 2026

Alternatives to OpenHTMLtoPDF

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Featured on iTechGuides

OpenHTMLtoPDF is listed in our PDF SDKs directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update