How to set jpeg quality of images in HTML in C# and .NET


Complete code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using SautinSoft;

namespace Example
{
    class Program
    {
        static void Main(string[] args)
        {
            SetJpegQuality();
        }
        /// <summary>
        /// How to set jpeg quality.
        /// </summary>
        static void SetJpegQuality()
        {
            string inpFile = @"..\..\..\example.docx";
            string outFile = Path.GetFullPath(@"Result.html");
            string imgDir = Path.GetDirectoryName(outFile);

            RtfToHtml r = new RtfToHtml();

            // 1. Set JPEG format and quality.
            RtfToHtml.HtmlFixedSaveOptions opt = new RtfToHtml.HtmlFixedSaveOptions()
            {
                ImagesDirectoryPath = Path.Combine(imgDir, "Result_images"),
                ImagesDirectorySrcPath = "Result_images",
                // Change to store images as physical files on local drive.
                EmbedImages = false,
                ImageFormat = RtfToHtml.HtmlSaveOptions.ImagesFormat.Jpeg,                
                JpegQuality = 50,
                Title = "JPEG images, 50% quality"
            };
            try
            {
                r.Convert(inpFile, outFile, opt);
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Conversion failed! {ex.Message}");
            }

            // Open the result.
            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile) { UseShellExecute = true });
        }
    }
}

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Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Text
Imports System.IO
Imports SautinSoft

Namespace Example
	Friend Class Program
		Shared Sub Main(ByVal args() As String)
			SetJpegQuality()
		End Sub
		''' <summary>
		''' How to set jpeg quality.
		''' </summary>
		Private Shared Sub SetJpegQuality()
			Dim inpFile As String = "..\..\..\example.docx"
			Dim outFile As String = Path.GetFullPath("Result.html")
			Dim imgDir As String = Path.GetDirectoryName(outFile)

			Dim r As New RtfToHtml()

			' 1. Set JPEG format and quality.
			Dim opt As New RtfToHtml.HtmlFixedSaveOptions() With {
				.ImagesDirectoryPath = Path.Combine(imgDir, "Result_images"),
				.ImagesDirectorySrcPath = "Result_images",
				.EmbedImages = False,
				.ImageFormat = RtfToHtml.HtmlSaveOptions.ImagesFormat.Jpeg,
				.JpegQuality = 50,
				.Title = "JPEG images, 50% quality"
			}
			Try
				r.Convert(inpFile, outFile, opt)
			Catch ex As Exception
				Console.WriteLine($"Conversion failed! {ex.Message}")
			End Try

			' Open the result.
			System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(outFile) With {.UseShellExecute = True})
		End Sub
	End Class
End Namespace

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