Convert HTML, SVG, EPUB, MHTML, and Markdown in C#

Aspose.HTML for .NET converts web document formats in C# through the Converter facade and rendering APIs. Use this section to choose the right input format guide, then open the task-specific article for PDF, XPS, DOCX, image, MHTML, or Markdown output.

Aspose.HTML for .NET supports conversion workflows for HTML, SVG, MHTML, EPUB, and Markdown documents. Most tasks use a predictable pattern: load or provide the source content, create a save options object for the target format, and call a method on the Converter class. When you need lower-level rendering control, use RenderTo() with rendering devices and rendering options.

Choose a Converter Guide

HTML Converter – convert HTML documents, strings, streams, or URLs to PDF, XPS, DOCX, images, MHTML, and Markdown.
SVG Converter – convert SVG files or SVG content to PDF, XPS, DOCX, JPG, PNG, BMP, TIFF, and GIF.
MHTML Converter – convert single-file MHTML web archives to PDF, XPS, DOCX, and image formats.
EPUB Converter – convert EPUB e-book files to PDF, XPS, DOCX, JPG, PNG, BMP, TIFF, and GIF.
Markdown Converter – convert Markdown to HTML first, then render it to PDF, XPS, DOCX, and image formats.
Fine-Tuning Converters – control rendering devices, page setup, image quality, margins, colors, streams, and renderer behavior.

Conversion API Patterns

Use the Converter class for direct format conversion when you want the shortest path from source document to output file. It provides format-specific methods such as ConvertHTML(), ConvertSVG(), ConvertMHTML(), ConvertEPUB(), and ConvertMarkdown().
Use RenderTo() and rendering devices when your application needs explicit control over rendering output, output streams, or device-specific options. The Fine-Tuning Converters section explains when to use PdfDevice, XpsDevice, DocDevice, ImageDevice, renderers, and rendering options instead of a direct converter method.

HTML to PDF Example

The following C# example shows the common conversion pattern: provide HTML content, create PdfSaveOptions, and call Converter.ConvertHTML() to write a PDF file.

1// Convert HTML to PDF using C#
2
3// Invoke the ConvertHTML() method to convert HTML to PDF
4Converter.ConvertHTML(@"<h1>Convert HTML to PDF!</h1>", ".", new PdfSaveOptions(), Path.Combine(OutputDir, "convert-with-single-line.pdf"));

Example-ConvertHtmlToPdfInOneLine.cs hosted with ❤ by GitHub

For a full workflow with input files, custom PdfSaveOptions, and output stream providers, see Convert HTML to PDF in C#.

Special Conversion Workflows

Flatten PDF – convert HTML to PDF and flatten interactive PDF content when the output must be fixed for distribution or printing.
Convert AI Markdown Responses to HTML – turn Markdown returned by AI tools into structured HTML pages with Aspose.HTML for .NET.
HTML to Image in .NET on Linux – configure fonts in Docker when HTML to image output depends on Linux font availability.

Other Platforms

Try Online Conversion

Use the free online Converters for quick manual checks. Use Aspose.HTML for .NET when the same conversion workflow must run inside a C# application, service, batch job, or document pipeline.

Working with HTML Documents HTML Converter