Convert **Documents → PDF** in .NET – Fast, Reliable PDF Generation with Sheetize PDF Converter

using Sheetize;

// 1️⃣ Load the license (free trial – no credit‑card required)
var license = new Sheetize.License();
license.SetLicense(@"C:\Sheetize.PdfConverter_for_.NET.lic");

// 2️⃣ Define input (any spreadsheet format)
var loadOpts = new LoadOptions
{
InputFile = @"C:\Data\Financials.xlsx"
};

// 3️⃣ Define PDF output options
var saveOpts = new PdfSaveOptions
{
OutputFile = @"C:\Exports\Financials.pdf"
};

// 4️⃣ Execute conversion
SpreadsheetConverter.Process(loadOpts, saveOpts);
Console.WriteLine("✅ Spreadsheet exported to PDF.");

using Sheetize;

// License
var license = new Sheetize.License();
license.SetLicense(@"C:\Sheetize.PdfConverter_for_.NET.lic");

// Load JSON source (could be a stream, a string, or a file)
var loadOpts = new LoadOptions
{
InputFile = @"C:\Exports\Report.json"
};

// PDF output configuration
var saveOpts = new PdfSaveOptions
{
OutputFile = @"C:\Results\Report_FromJson.pdf"
};

SpreadsheetConverter.Process(loadOpts, saveOpts);
Console.WriteLine("✅ JSON data rendered into PDF.");

using Sheetize;
using System;
using System.IO;
using System.Linq;

try
{
// 1️⃣ License validation
var license = new Sheetize.License();
license.SetLicense(@"C:\Licenses\Sheetize.PdfConverter_for_.NET.lic");

// 2️⃣ Input & output paths
string inputPath = @"C:\Input\Catalog.epub";
string outputPath = @"C:\Output\Catalog.pdf";

// 3️⃣ Supported input extensions
var docExts = new[]
{
".xlsx",".xlsb",".xlsm",".xltm",".xlam",".xls",".xml",
".csv",".tsv",".sqlscript",".dif",".epub",".azw3",
".html",".mhtml",".json"
};

// 4️⃣ Validate output is PDF
if (!Path.GetExtension(outputPath).Equals(".pdf", StringComparison.OrdinalIgnoreCase))
throw new InvalidOperationException("Output must be a PDF file.");

// 5️⃣ Validate input extension
if (!docExts.Contains(Path.GetExtension(inputPath).ToLower()))
throw new NotSupportedException($"Unsupported input file type: {inputPath}");

// 6️⃣ Build options
var loadOpts = new LoadOptions { InputFile = inputPath };
var saveOpts = new PdfSaveOptions
{
OutputFile = outputPath
};

// 7️⃣ Execute conversion
SpreadsheetConverter.Process(loadOpts, saveOpts);
Console.WriteLine($"✅ Conversion succeeded: {outputPath}");
}
catch (Exception ex)
{
// Centralized logging (Serilog, NLog, Azure AppInsights, etc.)
Console.Error.WriteLine($"❌ Conversion failed: {ex.GetType().Name} – {ex.Message}");
// Re‑throw if you want upstream handling
// throw;
}

# 1️⃣ Install the NuGet package
dotnet add package Sheetize

# 2️⃣ Grab a free trial licence (no credit‑card needed)
# https://purchase.sheetize.com/temp-license/113911

# 3️⃣ Place the .lic file in your project (e.g., ./Licenses/Sheetize.PdfConverter_for_.NET.lic)

# 4️⃣ Use the code snippets above – compile and watch PDFs appear!