convert tiff to jpg format

Question

I have a tiff image with two pages. When I convert the file to jpg format I lost second pages. Is there any way to put two images on tiff file into one jpg file. Because of

Answer 1

using System.Drawing;
using System.Drawing.Imaging;

Bitmap bm=Bitmap.FromFile("photo.tif");
bm.Save("photo.jpg",ImageFormat.Jpeg);

Answer 2

We faced some problems when converting TIF files to JPEG, because TIF format supports some types of compressions that are not supported in free toolkits. I searched the internet and tried some commercial toolkits, but most of them are hard to implement with many limitations. The toolkit that drew my attention is leadtools, because it supports loading and saving many file formats (including TIF images with different compressions). We used this toolkit convert our images to JPEG format. You can find more information in the following page: http://support.leadtools.com/CS/forums/8925/ShowPost.aspx

Note that you can convert any VB.Net code to C# by using this free code converter: http://www.developerfusion.com/tools/convert/vb-to-csharp/

Answer 3

Since a TIFF can contain multiple frames but JPG can't, you need to convert each single frame into a JPG.

Taken from Windows Dev Center Samples:

public static string[] ConvertTiffToJpeg(string fileName) 
{ 
        using (Image imageFile = Image.FromFile(fileName)) 
        { 
            FrameDimension frameDimensions = new FrameDimension( 
                imageFile.FrameDimensionsList[0]); 

            // Gets the number of pages from the tiff image (if multipage) 
            int frameNum = imageFile.GetFrameCount(frameDimensions); 
            string[] jpegPaths = new string[frameNum]; 

            for (int frame = 0; frame < frameNum; frame++) 
            { 
                // Selects one frame at a time and save as jpeg. 
                imageFile.SelectActiveFrame(frameDimensions, frame); 
                using (Bitmap bmp = new Bitmap(imageFile)) 
                { 
                    jpegPaths[frame] = String.Format("{0}\\{1}{2}.jpg",  
                        Path.GetDirectoryName(fileName), 
                        Path.GetFileNameWithoutExtension(fileName),  
                        frame); 
                    bmp.Save(jpegPaths[frame], ImageFormat.Jpeg); 
                } 
            } 

            return jpegPaths; 
        } 
} 

Answer 4

  public static class ConvertTiffToJpeg
    {
        static string base64String = null;
        public static string ImageToBase64(string tifpath)
        {
            string path = tifpath;
            using (System.Drawing.Image image = System.Drawing.Image.FromFile(path))
            {
                using (MemoryStream m = new MemoryStream())
                {
                    image.Save(m, ImageFormat.Jpeg);
                    byte[] imageBytes = m.ToArray();
                    base64String = Convert.ToBase64String(imageBytes);
                    return base64String;
                }
            }
        }
    }

< img src="data:image/jpeg;base64, @ConvertTiffToJpeg.ImageToBase64(@"c:\sample.tif")"/>

c# .net tiff-to-jpeg tiff