Programmatic HTML to DOCX Conversion for .NET
Aspose.HTML for .NET creates editable DOCX documents from HTML inside C# applications. Load a file, URL, string, stream, or HTMLDocument , create DocSaveOptions , and use the corresponding save workflow.
DOCX and HTML use different layout models, so pagination and editing structure should be tested with representative documents.
C# Code Example and Interactive HTML to DOCX Converter
Use the interactive example below to convert an HTML file or URL to DOCX and review the corresponding C# code. Use the generated code as a starting point, then add the settings required by your application.
using Aspose.Html;
using Aspose.Html.Converters;
using Aspose.Html.Saving;
using HTMLDocument document = new HTMLDocument("{{input lower}}");
{{#if_output 'PDF'}}
PdfSaveOptions options = new PdfSaveOptions();
{{/if_output}}
{{#if_output 'MHTML'}}
MHTMLSaveOptions options = new MHTMLSaveOptions();
{{/if_output}}
{{#if_output 'DOCX'}}
DocSaveOptions options = new DocSaveOptions();
{{/if_output}}
{{#if_output 'XPS'}}
XpsSaveOptions options = new XpsSaveOptions();
{{/if_output}}
{{#if_output 'MD'}}
MarkdownSaveOptions options = new MarkdownSaveOptions();
{{/if_output}}
{{#if_output 'BMP' 'JPG' 'GIF' 'PNG' 'TIFF'}}
ImageSaveOptions options = new ImageSaveOptions(ImageFormat.{{output param2 camel}});
{{/if_output}}
{{#if_output 'BMP' 'JPG' 'GIF' 'PNG' 'TIFF' 'PDF' 'MHTML' 'MD' 'XPS' 'DOCX'}}
Converter.ConvertHTML(document, options, "output.{{output lower}}");
{{/if_output}}
{{#if_output 'XHTML'}}
document.Save("output.xhtml", new HTMLSaveOptions() { DocumentType = HTMLSaveOptions.XHTML });
{{/if_output}}
How to Convert HTML to DOCX in C#
- Load the source with an HTMLDocument constructor.
- Create
DocSaveOptionsand configure the required output settings. - Call Converter.ConvertHTML() with the document, options, and output destination.
- Validate the generated DOCX with representative source documents.
HTML to DOCX Conversion Options and Documentation
Read the
HTML to DOCX documentation
for conversion examples and available DocSaveOptions settings.
Use
DocSaveOptions
to configure DOCX page setup, output format, font embedding, CSS processing, and rendering resolution. Save to a file path or use
ICreateStreamProvider
when the application needs custom stream output.
HTML to DOCX Conversion Notes
- Pagination changes. Reflowable HTML becomes a paged Word document; test page breaks, tables, and fixed elements.
- Page and font settings are explicit. Use
PageSetupfor geometry andFontEmbeddingRulewhen fonts must travel with the document. - Editability differs from HTML. CSS and browser layout do not map one-to-one to editable Word structures.
- Resources need context. Relative resources require a base URI, and remote resources must be accessible.
- Output can be streamed. Use
ICreateStreamProviderfor custom stream output.
Install Aspose.HTML for .NET
Add the package to your project, then use the C# example above as the minimal HTML to DOCX workflow.
Install Aspose.HTML for .NET from NuGet with the .NET CLI:
dotnet add package Aspose.HTML
You can also use the NuGet Package Manager UI or run Install-Package Aspose.HTML in the Package Manager Console. See the
installation guide
for setup details, or request a
temporary license
to evaluate the API without evaluation limitations.
HTML to DOCX Conversion FAQ
1. How do I convert HTML to DOCX in C#?
Load the source into an HTMLDocument, create DocSaveOptions, and call Converter.ConvertHTML() with the document and output path. The result is an editable DOCX file rendered from the HTML and available CSS.
2. Is the generated DOCX editable?
Yes. DOCX is editable, but review structure and pagination because Word and browser layout models differ.
3. Can I control page size and margins?
Yes. Configure DocSaveOptions.PageSetup before conversion to define the DOCX page size and margins. Test the selected geometry with wide tables and other content that may reflow.
4. Can fonts be embedded?
Yes. Set DocSaveOptions.FontEmbeddingRule when the DOCX must carry supported fonts instead of depending only on fonts installed where the document is opened. Font embedding can increase file size.
5. Can I save DOCX to a stream?
Yes. Pass an
ICreateStreamProvider
implementation to the appropriate Converter.ConvertHTML() overload when the application needs to write DOCX output to memory or another custom destination instead of a file path.
Other Supported HTML Conversions
Explore other HTML conversion APIs and C# examples: