转换为TIFF格式JPG [英] convert tiff to jpg format

问题描述

我有两页TIFF图像。当我将文件转换为JPG格式
我失去了第二页。
是有什么办法可以把TIFF文件两幅图像成一个JPG文件。
，因为TIFF文件是太大了，我必须有什么办法减少TIFF文件大小减少编程的sizes.is？也可能是我的问题。

I have tiff image with two pages. when I convert 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 tiff files are too big i have to decrease their sizes.is there any way decrease tiff files size programatically ?it could also be solition for my problem

推荐答案

由于TIFF可以包含多个帧，但JPG不能，你需要在每个单个帧转换为JPG。

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

从 Windows开发人员中心采取样品的：

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; 
        } 
} 

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