通过软件实现PDF,XPS,Images和Office 2007之间的相互转换

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：

PDF->XPS:

            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。