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Convert XHTML to PDF using C# REST API

This guide shows you step‑by‑step how to convert XHTML to PDF with a C# REST API. You’ll learn to transform an XHTML document into a PDF using a .NET‑based Cloud SDK and discover ways to customize the output PDF.

Prerequisite

Steps for XHTML to PDF Converter using C# Low Code API

  1. Add Aspose.HTML.Cloud.Sdk and Aspose.HTML.Cloud.Sdk.Conversion to your application for accessing HTML Cloud API classes and conversion features
  2. Create an instance of HtmlApi by providing your Client ID and Client Secret for authentication with Aspose Cloud
  3. Retrieve the ConvertApi object from the initialized HtmlApi to perform document conversions
  4. Instantiate a PDFConversionOptions object to define output parameters for the PDF file
  5. Set the PDF page height to 8 inches and width to 11 inches (landscape format)
  6. Specify all four margins—top, bottom, left, and right—as 1 inch each
  7. Call ConvertAsync() on the convertApi to convert the XHTML file into a PDF

These steps explain how to change an XHTML document to PDF using C# .NET-based API. To convert your XHTML file into a PDF, first connect to Aspose Cloud by adding the SDK, authenticating with your Client ID and Secret, and then accessing the conversion API. After that, set up your PDF options such as page size and margins, and run ConvertAsync() to generate the final PDF.

Code to Convert XHTML to PDF Online using C# REST Interface

The sample code illustrates how to export an XHTML file to PDF using the C# REST API. By invoking ConvertAsync() with only the two required arguments—omitting PDFConversionOptions—the service produces the PDF with its default settings, creating the output file automatically.

In this tutorial we walked through converting XHTML to PDF with the C# REST API. If you also need to turn Markdown files into PDFs, see our companion guide — Convert Markdown to PDF using C# REST API.

 

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