Rendered without a browser.
"; File.WriteAllBytes("invoice.pdf", HtmlPdf.ToPdf(html)); var options = new HtmlRenderOptions { Width = 600, Height = 200 }; RgbaImage image = HtmlRender.ToImage(html, options); File.WriteAllBytes("invoice.png", image.ToPng()); ``` ### Lays out real CSS Block and inline layout, floats, positioning, flexbox, grid with subgrid, tables, multi-column, and bidirectional text shaped by onefont. ### Tagged PDFs from HTML Headings, lists, tables and `alt` text become the PDF’s structure, with PDF/UA-1 and PDF/A-2a one option away. `@page`, margin boxes and page numbers work. ### Razor in one call Render a Razor component to a PDF or an image inside ASP.NET Core, with style sheets, images and fonts served from `wwwroot`. ### Interactive UIs and games Hit testing, DOM-standard events, focus, scrolling, form controls with text editing, and CSS animations on your own clock. Steady frames allocate nothing. ### Accessibility checks without a browser Lays a page out and hands onehtml’s checker the rendered facts it needs for contrast and target size. ### Nothing runs that you didn’t pass in No JavaScript, no network, no processes and no `unsafe` code. Your code supplies every style sheet, image and font, and limits are checked before the work they guard. ## Compared with Chrome, element by element Layout is compared with Chrome for Testing 156 on the same font files. On six document templates, 99.967% of the geometry is within tolerance at both 1280 × 800 and 390 × 844. Web Platform Tests gate each CSS module, and tagged PDFs are validated against PDF/UA-1 with veraPDF. [How the comparison works](https://recursiveai.org/onerender/docs/geometry-differential/) ## The packages - **RecursiveAI.OneRender**: The engine: styles, layout, paged media, paint to a display list, hit testing, events, focus, forms and animations. Depends on onehtml and onefont. 1.0.0. - **.Image**: `RecursiveAI.OneRender.Image` turns the display list into pixels: `HtmlRender.ToImage`, through oneimage. 1.0.0. - **.Pdf**: `RecursiveAI.OneRender.Pdf` writes a tagged PDF: `HtmlPdf.ToPdf`, through onepdf. 1.0.0. - **.Razor**: `RecursiveAI.OneRender.Razor` renders a Razor component to a PDF or an image in one call. 1.0.0. - **.Accessibility**: `RecursiveAI.OneRender.Accessibility` produces rendered page facts in onehtml’s `RenderedFacts` shape. 1.0.0. - **.Fonts**: `RecursiveAI.OneRender.Fonts` bundles Liberation Sans, Serif and Mono, Carlito and Caladea, which also answer to Arial, Times New Roman, Courier New, Calibri and Cambria. 1.0.0. - **.Fonts.Cjk**: `RecursiveAI.OneRender.Fonts.Cjk` adds Noto Sans CJK for Chinese, Japanese and Korean. 1.0.0. - **.Fonts.Emoji**: `RecursiveAI.OneRender.Fonts.Emoji` adds Noto Color Emoji. 1.0.0. - **.Fonts.Noto.**: 29 script packs, from Arabic, Devanagari and Hebrew to Thai, Tibetan and Math. [All 29 on NuGet](https://www.nuget.org/packages?q=RecursiveAI.OneRender.Fonts.Noto). 1.0.0. - **.NET**: .NET 10. NativeAOT, trimming and WebAssembly are supported. Every package shares one version. MIT or Apache-2.0; the font packages add the SIL Open Font License. ## Go further - [GitHub](https://github.com/recursive-ai-oss/onerender-csharp) - [NuGet](https://www.nuget.org/packages/RecursiveAI.OneRender) - [Getting started](https://recursiveai.org/onerender/docs/getting-started/) - [All docs](https://recursiveai.org/onerender/docs/) - [Cookbook](https://recursiveai.org/onerender/cookbook/) - [HTML to PDF](https://recursiveai.org/onerender/cookbook/html-to-pdf/) - [Razor to PDF](https://recursiveai.org/onerender/cookbook/razor-to-pdf/) - [Replacing a headless browser](https://recursiveai.org/onerender/cookbook/replace-headless-browser/) - [Game hosts](https://recursiveai.org/onerender/docs/game-hosts/) - [Changelog](https://github.com/recursive-ai-oss/onerender-csharp/blob/v1.0.0/CHANGELOG.md)