c# web page show 2nd page of tiff on an image control

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; } } } }

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; 
        } 
}

Posted by: Guest on September-23-2020

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