简单介绍PDF,XPS,Images,Office 2007之间的转换方法

在实现这些文件格式转换时，使用了第三方的一个组件：Amyuni PDF Creator .NET，Licence好像需要399美刀。这里使用的是30天试用Licence。主要需要是三个dll，在项目中添加对他们的引用就可以了.在B/S应用中部署时可能碰到问题在此blog第二条描述解决办法。

private string licensee

= "PDF Creator Evaluation license";

private string activationCode

= "07EFCDAB0100010048A7F99BCA4506BAE4D4F8695A701B085D550F57C0436768AD20DB28763CE97934AFB3DC8D2228B55AB06E9466AA8A772032BF46FBFAB5";
组件提供了部分转换方法，可以将PDF文件通过下面的方法转换成相应的格式：

acPDFCreatorLib.Initialize();

acPDFCreatorLib.SetLicenseKey(licensee, activationCode);

System.IO.FileStream pdfFile = new System.IO.FileStream("license.pdf", FileMode.Open);

IacDocument document = new IacDocument(null);

//Open the pdf document

document.Open(pdfFile, "");

bool flag = document.ExportToXPS("license.xps", IacXPSExportOptions.acXPSExportOptionsNone);

pdfFile.Close();

XPS->PDF:

acPDFCreatorLib.Initialize();

acPDFCreatorLib.SetLicenseKey(licensee, activationCode);

System.IO.FileStream pdfFile = new System.IO.FileStream("license.xps", FileMode.Open, FileAccess.Read, FileShare.Read);

IacDocument document = new IacDocument(null);

//Open the pdf document

document.Open(pdfFile, "");

System.IO.FileStream file1 = new System.IO.FileStream("new.pdf", System.IO.FileMode.Create,

System.IO.FileAccess.Write, System.IO.FileShare.Read);

bool flag = document.Save(file1, IacFileSaveOption.acFileSaveView);

pdfFile.Close();

file1.Close();
Image -> PDF:

private void ConverToPDF(string sourcePath, string targetPath)

{

// initialize library and set the license key

acPDFCreatorLib.Initialize();

acPDFCreatorLib.SetLicenseKey(licensee, activationCode);

//creating a new document

IacDocument document = new IacDocument(null);

System.IO.FileStream file1 = new System.IO.FileStream(targetPath, System.IO.FileMode.Create,

System.IO.FileAccess.Write, System.IO.FileShare.Read);

document.StartSave(file1, Amyuni.PDFCreator.IacFileSaveOption.acFileSaveView);

int pageIndex = 1;

//create a picture object on each page

IacPage page = document.GetPage(pageIndex);

String objectName = "image";

Amyuni.PDFCreator.IacObject picture = page.CreateObject(IacObjectType.acObjectTypePicture, objectName);

//position the picture

int WidthInPixels = page.GetPageFormat().Width;

int HeightInPixels = page.GetPageFormat().Length;

Image IMG = Image.FromFile(sourcePath);

GraphicsUnit GU = GraphicsUnit.Millimeter;

RectangleF Bounds = IMG.GetBounds(ref GU);

if (WidthInPixels > Bounds.Width * 10)

{

WidthInPixels = (int)Bounds.Width;

}

HeightInPixels = (int)((WidthInPixels / Bounds.Width * 10) * Bounds.Height * 10);

picture.Attribute("Right").Value = WidthInPixels;

picture.Attribute("Bottom").Value = HeightInPixels;

picture.Attribute("FileName").Value = sourcePath;

//insert a bookmark that points to this page

document.RootBookmark.InsertChild(pageIndex, objectName, "image");

//save the current page

document.SavePageNumber(pageIndex);

//clear the page contents to save memory

page.Clear();

// add a new page after the current one

document.AddPage(pageIndex);

//close the pdf document

document.EndSave();

}

Office 2007文件格式转换为PDF和XPS格式的方法也比较简单，微软提供了一个转换为XPS和PDF的AddIn，安装后调用Office类库可以实现转换，MSDN上有相应的代码。