How to Convert CDR to PNG using API in .NET

convert_cdr_to_png_complete_code_example.cs

using System;
using Conholdate.Total;
using Conholdate.Total.Conversion;
using System.Drawing;

namespace CdrToPngDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            // Validate input arguments
            if (args.Length < 2)
            {
                Console.WriteLine("Usage: CdrToPngDemo <input.cdr> <output_folder>");
                return;
            }

            string inputPath = args[0];
            string outputFolder = args[1];

            try
            {
                // Initialize the conversion engine
                var converter = new Conversion();

                // Load the CDR document
                var loadOptions = new LoadOptions { Format = FileFormat.Cdr };
                var document = converter.Load(inputPath, loadOptions);

                // Set PNG export options
                var pngOptions = new PngOptions
                {
                    Resolution = 300,
                    CompressionLevel = 6,
                    BackgroundColor = Color.White
                };

                // Ensure output folder exists
                System.IO.Directory.CreateDirectory(outputFolder);

                // Convert each page to a separate PNG file
                for (int pageIndex = 0; pageIndex < document.PageCount; pageIndex++)
                {
                    string outputPath = System.IO.Path.Combine(outputFolder, $"page_{pageIndex + 1}.png");
                    converter.Save(document, outputPath, pngOptions, pageIndex);
                    Console.WriteLine($"Saved page {pageIndex + 1} to {outputPath}");
                }

                Console.WriteLine("Conversion completed successfully.");
            }
            catch (Exception ex)
            {
                Console.Error.WriteLine($"Error during conversion: {ex.Message}");
                // For detailed troubleshooting, enable logging as described in the docs
            }
        }
    }
}