Benchmarking 12 HTML-to-PDF APIs Across 14 Rendering Checks
We tested 12 PDF generation APIs across 14 rendering checks, comparing HTML-to-PDF accuracy, speed, file sizes, and fillable form support.
In October 2026, 12 HTML-to-PDF APIs were evaluated based on 14 rendering checks, including speed and file size. PDFGate and DocRaptor successfully passed all 14 checks, with DocRaptor using a version of the page written for its Prince engine. All input materials, including HTML, scripts, and output PDFs, are available in the public repository for verification purposes. The results revealed differences in how the APIs handled various elements such as text, charts, forms, and page numbers.
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