Word template processing-to-PDF/UA conversion

Template-based document generation combined with PDF/UA compliance — whether for accessible invoices, compliant legal documents, or personalized educational materials — enables organizations to produce accessible, personalized documents at scale.

How Nutrient helps you achieve this

Nutrient .NET SDK handles template processing with PDF/UA compliance. With the SDK, you don’t need to worry about:

• Parsing Word document internals
• Managing XML structures
• Handling style preservation
• Complex placeholder replacement logic
• PDF/UA tagging and accessibility compliance

Instead, Nutrient provides an API that handles all the complexity behind the scenes, letting you focus on your business logic.

Complete implementation

Below is a complete working example that demonstrates Nutrient’s template processing with PDF/UA output. Start with the SDK imports:

using Nutrient;

Open the Word template file with a using declaration(opens in a new tab), which disposes the document when you’re done, preventing resource leaks:

try
{
    using Document document = Document.Open("input_template.docx");

Here, you create a WordEditor instance that will enable you to manipulate the document. This editor provides all the methods needed for template processing:

    using WordEditor editor = WordEditor.Edit(document);

This block reads the JSON data model. The dedicated IOException catch block below handles file reading errors gracefully:

    string model = File.ReadAllText("input_template_model.json");

This line applies the template model, replacing all placeholders with actual data while preserving all formatting:

    editor.ApplyTemplateModel(model);

This block saves the editor, configures PDF/UA conformance, and exports the document as an accessible PDF. The PDF_UA_1 setting ensures the output meets ISO 14289 accessibility standards:

    editor.Save();

    var settings = document.Settings;
    var pdfSettings = settings.PdfSettings;
    pdfSettings.Conformance = PdfConformance.PDF_UA_1;

    document.ExportAsPdf("output.pdf");
    Console.WriteLine("Successfully generated accessible PDF from template");
}
catch (IOException)
{
    Console.Error.WriteLine("Failed to read template model file");
    Environment.Exit(1);
}
catch (NutrientException e)
{
    Console.Error.WriteLine($"Error: {e.Message}");
    Environment.Exit(1);
}

Conclusion

The template processing logic with PDF/UA output consists of five steps:

1. Open the document.
2. Create an editor.
3. Apply the template model.
4. Configure PDF/UA conformance.
5. Export as PDF.

Nutrient handles complex document processing and accessibility compliance so you don’t need to understand Word’s internal structure, XML manipulation, or manual PDF tagging.

Error handling

Nutrient .NET SDK handles errors with exception handling. The methods presented in this guide throw a NutrientException if a failure occurs. The using statements release the editor and document even when a step fails.