WPF实现在线预览和显示Word和PDF文件

奕徒 · 发表于 2024-2-25 12:02:59

效果图

PDF和Word预览，可用于WPF和Winform。原理是采用spire把word或者pdf文件转成xps文件，用documentViewer来呈现，并重新封装了显示的样子
WPF 需要引用的包，本地程序集

ReachFramework spire.officeMicrosoft.Office.Interop.Word.dll

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spire把word或者pdf文件转成xps文件
word转化提供另外一种方法，采用引用Microsoft.Office.Interop.Word.dll
实现代码

using Spire.Doc;
using Spire.Pdf;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Windows.Xps.Packaging;
namespace WpfApp3
{
/// <summary>
/// Main.xaml 的交互逻辑
/// </summary>
public partial class Main : Window
{
/// <summary>
/// 转化临时显示文件
/// </summary>
public string tempPdfPreAddress = Environment.CurrentDirectory + "\\tempPdfPre\";
/// <summary>
/// 统一读取
/// </summary>
XpsDocument readerDoc;
public Main()
{
InitializeComponent();
if (!Directory.Exists(tempPdfPreAddress))
{
Directory.CreateDirectory(tempPdfPreAddress);
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
string filePath = Environment.CurrentDirectory + "\\个人申请微信公众号教程.docx";
ConvertWordToXPS2(filePath);
}
private void Button_Pdf_Click(object sender, RoutedEventArgs e)
{
string filePath = Environment.CurrentDirectory + "\\样板.pdf";
ConvertPdfToXPS(filePath);
}
private void ConvertPdfToXPS(string pdfDocName)
{
if (readerDoc != null)
readerDoc.Close();
PdfDocument pdfDocument = new PdfDocument();
pdfDocument.LoadFromFile(pdfDocName);
string name = tempPdfPreAddress + System.IO.Path.GetFileNameWithoutExtension(pdfDocName) + ".xps";
pdfDocument.SaveToFile(name, Spire.Pdf.FileFormat.XPS);
pdfDocument.Close();
readerDoc = new XpsDocument(name, FileAccess.Read);
docViewer.Document = readerDoc.GetFixedDocumentSequence();
docViewer.FitToWidth();
}
private void ConvertWordToXPS2(string wordDocName)
{
if (readerDoc != null)
readerDoc.Close();
Document document = new Document(wordDocName);
string name = tempPdfPreAddress + System.IO.Path.GetFileNameWithoutExtension(wordDocName) + ".xps";
document.SaveToFile(name, Spire.Doc.FileFormat.XPS);
document.Close();
readerDoc = new XpsDocument(name, FileAccess.Read);
docViewer.Document = readerDoc.GetFixedDocumentSequence();
docViewer.FitToWidth();
}
//private XpsDocument ConvertWordToXPS(string wordDocName)
//{
// FileInfo fi = new FileInfo(wordDocName);
// XpsDocument result = null;
// string xpsDocName = System.IO.Path.Combine(tempPdfPreAddress, fi.Name);
// xpsDocName = xpsDocName.Replace(".docx", ".xps").Replace(".doc", ".xps");
// Microsoft.Office.Interop.Word.Application wordApplication = new Microsoft.Office.Interop.Word.Application();
// try
// {
// if (!File.Exists(xpsDocName))
// {
// wordApplication.Documents.Add(wordDocName);
// Microsoft.Office.Interop.Word.Document doc = wordApplication.ActiveDocument;
// doc.ExportAsFixedFormat(xpsDocName, Microsoft.Office.Interop.Word.WdExportFormat.wdExportFormatXPS, false, Microsoft.Office.Interop.Word.WdExportOptimizeFor.wdExportOptimizeForPrint, Microsoft.Office.Interop.Word.WdExportRange.wdExportAllDocument, 0, 0, Microsoft.Office.Interop.Word.WdExportItem.wdExportDocumentContent, true, true, Microsoft.Office.Interop.Word.WdExportCreateBookmarks.wdExportCreateHeadingBookmarks, true, true, false, Type.Missing);
// result = new XpsDocument(xpsDocName, System.IO.FileAccess.Read);
// }
// if (File.Exists(xpsDocName))
// {
// result = new XpsDocument(xpsDocName, FileAccess.Read);
// }
// }
// catch (Exception ex)
// {
// string error = ex.Message;
// wordApplication.Quit(Microsoft.Office.Interop.Word.WdSaveOptions.wdDoNotSaveChanges);
// }
// wordApplication.Quit(Microsoft.Office.Interop.Word.WdSaveOptions.wdDoNotSaveChanges);
// return result;
//}
private void Button_page_Click(object sender, RoutedEventArgs e)
{
MessageBox.Show(docViewer.MasterPageNumber + "/" + docViewer.PageCount.ToString());
}
private void ZoomInButton_mouse_down(object sender, MouseButtonEventArgs e)
{
docViewer.Zoom += 10;
}
private void ZoomOutButton_mouse_down(object sender, MouseButtonEventArgs e)
{
docViewer.Zoom -= 10;
}
private void Back_mouse_down(object sender, MouseButtonEventArgs e)
{
}
}
}

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