Convert Excel to PDF in C# Applications

Transforming Excel files into polished, share-ready PDFs doesn’t have to be a slow or complicated process. With the GroupDocs.Conversion Cloud SDK for .NET, you can integrate Excel-to-PDF conversion directly into your C# applications and automate document workflows with precision. If your projects involve reports, analytics exports, or data packaging, this SDK gives you the control and speed needed to streamline your entire process.

Instead of depending on third-party desktop tools or bulky libraries, you can call the GroupDocs Cloud API from any .NET project and instantly convert XLSX or XLS files into high-quality PDF documents. The SDK offers full customization—page orientation, resolution, sheet selection, and rendering preferences—allowing you to produce PDFs that match the exact format your users or business processes require. This makes it a powerful asset for financial dashboards, enterprise reporting systems, document pipelines, and SaaS platforms where consistency matters.

What sets the SDK apart is its cloud-native design. You no longer need to manage dependencies or worry about OS-specific behavior. Whether your application runs on Windows, Linux, or macOS, the conversion engine works the same everywhere. This reliability gives developers the freedom to scale confidently and build automated workflows that handle large or repetitive Excel-to-PDF conversions without manual involvement. If you're aiming to build a more efficient, production-ready system, integrating this SDK into your C# environment is one of the fastest ways to elevate your document management capabilities.

Complete step-by-step guide.

Code example:

using System;
using System.IO;
using GroupDocs.Conversion.Cloud.Sdk.Api;
using GroupDocs.Conversion.Cloud.Sdk.Client;
using GroupDocs.Conversion.Cloud.Sdk.Model;
using GroupDocs.Conversion.Cloud.Sdk.Model.Requests;

namespace ExcelToPDFConversion
{
    class Program
    {
        static void Main(string[] args)
        {

            // Configure API credentials
            string MyAppID = "your-app-id";
            string MyAppSecret = "your-app-secret";

            var config = new Configuration(MyAppID, MyAppSecret);
            var convertApi = new ConvertApi(config);

            // Prepare conversion settings
            var convertSettings = new ConvertSettings
            {
                // Source file path in cloud storage
                FilePath = "SampleFiles/source.xlsx",
                // Set output format
                Format = "pdf",
                ConvertOptions = new PdfConvertOptions
                {
                    PageSize = PdfConvertOptions.PageSizeEnum.A4,
                    MarginLeft = 5,
                    MarginTop = 5,
                },
                // Output file path in cloud storage
                OutputPath = "conversion/converted.pdf",
            };

            try
            {
                // Perform Excel to PDF conversion
                var request = new ConvertDocumentRequest(convertSettings);
                var response = convertApi.ConvertDocument(request);

                Console.WriteLine(response != null
                    ? "Excel to PDF conversion was successful!"
                    : "Excel to PDF conversion failed.");
            }
            catch (Exception ex)
            {
                Console.WriteLine("An error occurred: " + ex.Message);
            }
        }
    }
}