Word控件Spire.Doc 转换教程(十)：如何将 Word 转换为 Tiff

TIFF（标记图像文件格式）是一种灵活的文件格式，用于存储图像，包括照片和艺术图像。它受到图像处理应用程序、出版和页面布局应用程序以及扫描、传真、文字处理应用程序等的广泛支持。它可以是一个包含压缩（有损）JPEG 和（无损）PackBits 压缩图像的容器。以无损格式存储图像数据的能力使 TIFF 文件成为有用的图像存档。因此，有时开发人员需要将其他格式（如 word）的文档转换为 TIFF 格式。

注意：请先下载最新版本的Spire.Doc for .NET（或Spire.Office）在bin文件夹中添加.dll作为Visual Studio的参考。

示例word文件：

请按照以下详细步骤操作：

第 1 步：创建一个新的文档实例并从文件中加载一个 word 文档。

Document document = new Document(@"E:Program Filestesting.docx");

第 2 步：使用 document.SaveToImages() 方法将 word 文档保存为 Image 数组。

private static Image[] SaveAsImage(Document document){Image[] images = document.SaveToImages(ImageType.Bitmap);return images;}

第 3 步：使用JoinTiffImages()方法将word pages中的图片保存为tiff图片类型，指定encoder和image-encoder参数。

public static void JoinTiffImages(Image[] images, string outFile, EncoderValue compressEncoder){//use the save encoderSystem.Drawing.Imaging.Encoder enc = System.Drawing.Imaging.Encoder.SaveFlag;EncoderParameters ep = new EncoderParameters(2);ep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.MultiFrame);ep.Param[1] = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)compressEncoder);Image pages = images[0];int frame = 0;ImageCodecInfo info = GetEncoderInfo("image/tiff");foreach (Image img in images){if (frame == 0){pages = img;//save the first framepages.Save(outFile, info, ep);}else{//save the intermediate framesep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.FrameDimensionPage);pages.SaveAdd(img, ep);}if (frame == images.Length - 1){//flush and close.ep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.Flush);pages.SaveAdd(ep);}frame++;}}

TIFF文件：

完整代码：

[C＃]

using Spire.Doc;using Spire.Doc.Documents;using System;using System.Drawing;using System.Drawing.Imaging;namespace convert_word_to_tiff{class Program{static void Main(string[] args){Document document = new Document(@"E:Program Filestesting.docx");JoinTiffImages(SaveAsImage(document),"6056result.tiff",EncoderValue.CompressionLZW);System.Diagnostics.Process.Start("6056result.tiff");}private static Image[] SaveAsImage(Document document){Image[] images = document.SaveToImages(ImageType.Bitmap);return images;}private static ImageCodecInfo GetEncoderInfo(string mimeType){ImageCodecInfo[] encoders = ImageCodecInfo.GetImageEncoders();for (int j = 0; j < encoders.Length; j++){if (encoders[j].MimeType == mimeType)return encoders[j];}throw new Exception(mimeType + " mime type not found in ImageCodecInfo");}public static void JoinTiffImages(Image[] images, string outFile, EncoderValue compressEncoder){//use the save encoderSystem.Drawing.Imaging.Encoder enc = System.Drawing.Imaging.Encoder.SaveFlag;EncoderParameters ep = new EncoderParameters(2);ep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.MultiFrame);ep.Param[1] = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)compressEncoder);Image pages = images[0];int frame = 0;ImageCodecInfo info = GetEncoderInfo("image/tiff");foreach (Image img in images){if (frame == 0){pages = img;//save the first framepages.Save(outFile, info, ep);}else{//save the intermediate framesep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.FrameDimensionPage);pages.SaveAdd(img, ep);}if (frame == images.Length - 1){//flush and close.ep.Param[0] = new EncoderParameter(enc, (long)EncoderValue.Flush);pages.SaveAdd(ep);}frame++;}}}}

[VB.NET]

Imports Spire.DocImports Spire.Doc.DocumentsImports System.DrawingImports System.Drawing.ImagingNamespace convert_word_to_tiffClass ProgramPrivate Shared Sub Main(args As String())Dim document As New Document("E:Program Filestesting.docx")JoinTiffImages(SaveAsImage(document), "6056result.tiff", EncoderValue.CompressionLZW)System.Diagnostics.Process.Start("6056result.tiff")End SubPrivate Shared Function SaveAsImage(document As Document) As Image()Dim images As Image() = document.SaveToImages(ImageType.Bitmap)Return imagesEnd FunctionPrivate Shared Function GetEncoderInfo(mimeType As String) As ImageCodecInfoDim encoders As ImageCodecInfo() = ImageCodecInfo.GetImageEncoders()For j As Integer = 0 To encoders.Length - 1If encoders(j).MimeType = mimeType ThenReturn encoders(j)End IfNextThrow New Exception(mimeType & Convert.ToString(" mime type not found in ImageCodecInfo"))End FunctionPublic Shared Sub JoinTiffImages(images As Image(), outFile As String, compressEncoder As EncoderValue)'use the save encoderDim enc As System.Drawing.Imaging.Encoder = System.Drawing.Imaging.Encoder.SaveFlagDim ep As New EncoderParameters(2)ep.Param(0) = New EncoderParameter(enc, CLng(EncoderValue.MultiFrame))ep.Param(1) = New EncoderParameter(System.Drawing.Imaging.Encoder.Compression, CLng(compressEncoder))Dim pages As Image = images(0)Dim frame As Integer = 0Dim info As ImageCodecInfo = GetEncoderInfo("image/tiff")For Each img As Image In imagesIf frame = 0 Thenpages = img'save the first framepages.Save(outFile, info, ep)Else'save the intermediate framesep.Param(0) = New EncoderParameter(enc, CLng(EncoderValue.FrameDimensionPage))pages.SaveAdd(img, ep)End IfIf frame = images.Length - 1 Then'flush and close.ep.Param(0) = New EncoderParameter(enc, CLng(EncoderValue.Flush))pages.SaveAdd(ep)End Ifframe += 1NextEnd SubEnd ClassEnd Namespace

Spire.Doc 可以将 Word 转换为大多数流行的文件格式。它可以将Word转换为PDF、HTML、XML、RTF、Text、ePub等。

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