Convert PDF to JPG with high Quality in C# and .NET


Complete code

using System;
using System.IO;

namespace Sample
{
    class Sample
    {
        static void Main(string[] args)
        {
                                  // Get your free 30-day key here:   
			 // https://sautinsoft.com/start-for-free/
			
            // Convert PDF to JPG with high Quality
            SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();

            string pdfFile = Path.GetFullPath(@"..\..\..\Potato Beetle.pdf");
            string jpegDir = new DirectoryInfo(Directory.GetCurrentDirectory()).CreateSubdirectory("Result").FullName;

            f.OpenPdf(pdfFile);

            if (f.PageCount > 0)
            {
                // Set image properties: Jpeg, 200 dpi
                f.ImageOptions.ImageFormat = SautinSoft.PdfFocus.CImageOptions.ImageFormats.Jpeg;
                f.ImageOptions.Dpi = 200;

                // Set 95 as JPEG quality
                f.ImageOptions.JpegQuality = 50;

                //Save all PDF pages to image folder, each file will have name Page 1.jpg, Page 2.jpg, Page N.jpg
                for (int page = 1; page <= f.PageCount; page++)
                {
                    string jpegFile = Path.Combine(jpegDir, String.Format("Page {0}.jpg", page));

                    // 0 - converted successfully                
                    // 2 - can't create output file, check the output path
                    // 3 - conversion failed
                    int result = f.ToImage(jpegFile, page);

                    // Show only 1st page
                    if (page == 1 && result == 0)
                        System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(jpegFile) { UseShellExecute = true });
                }
            }
        }
    }
}

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Imports System
Imports System.IO

Namespace Sample
	Friend Class Sample
		Shared Sub Main(ByVal args() As String)
								  ' Get your free 30-day key here:   
			 ' https://sautinsoft.com/start-for-free/

			' Convert PDF to JPG with high Quality
			Dim f As New SautinSoft.PdfFocus()

			Dim pdfFile As String = Path.GetFullPath("..\..\..\Potato Beetle.pdf")
			Dim jpegDir As String = (New DirectoryInfo(Directory.GetCurrentDirectory())).CreateSubdirectory("Result").FullName

			f.OpenPdf(pdfFile)

			If f.PageCount > 0 Then
				' Set image properties: Jpeg, 200 dpi
				f.ImageOptions.ImageFormat = SautinSoft.PdfFocus.CImageOptions.ImageFormats.Jpeg
				f.ImageOptions.Dpi = 200

				' Set 95 as JPEG quality
				f.ImageOptions.JpegQuality = 50

				'Save all PDF pages to image folder, each file will have name Page 1.jpg, Page 2.jpg, Page N.jpg
				For page As Integer = 1 To f.PageCount
					Dim jpegFile As String = Path.Combine(jpegDir, String.Format("Page {0}.jpg", page))

					' 0 - converted successfully                
					' 2 - can't create output file, check the output path
					' 3 - conversion failed
					Dim result As Integer = f.ToImage(jpegFile, page)

					' Show only 1st page
					If page = 1 AndAlso result = 0 Then
						System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(jpegFile) With {.UseShellExecute = True})
					End If
				Next page
			End If
		End Sub
	End Class
End Namespace

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