PDF/WORD/EXCEL/PPT 文档在线阅读

查资料看了2种解决方法：

1.通过办公软件dll转换，用flans去看

2.通过Aspose转换成pdf格式，在用js前台读pdf（我用的pdf.js）

今天我解决的就是WORD/EXCEL/PPT 转化成 PDF ，然后 PDF在线阅读

1.WORD/PPT/EXCEL转PPT类(很简单的)

using Aspose.Words;
using Aspose.Cells;
using Aspose.Slides;

/// <summary>
/// Office2Pdf 将Office文档转化为pdf
/// </summary>
public class Office2Pdf
{
    public Office2Pdf()
    {
        //
        // TODO: 在此处添加构造函数逻辑
        //
    }
    /// <summary>
    /// Word转换成pdf
    /// </summary>
    /// <param name="sourcePath">源文件路径</param>
    /// <param name="targetPath">目标文件路径</param>
    /// <returns>true=转换成功</returns>
    public bool DOCConvertToPDF(string sourcePath, string targetPath)
    {
        bool result = false; 
        try
        {
            Document doc = new Document(sourcePath);
            doc.Save(targetPath, Aspose.Words.SaveFormat.Pdf);
            result = true;
        }
        catch
        {
            result = false;
        }
        finally
        {        
        }
        return result;
    }

    /// <summary>
    /// 把Excel文件转换成PDF格式文件  
    /// </summary>
    /// <param name="sourcePath">源文件路径</param>
    /// <param name="targetPath">目标文件路径</param>
    /// <returns>true=转换成功</returns>
    public bool XLSConvertToPDF(string sourcePath, string targetPath)
    {
        bool result = false;
      
        try
        {
            //Excel
            Workbook excel = new Workbook(sourcePath);
            excel.Save(targetPath, Aspose.Cells.SaveFormat.Pdf);
            result = true;
        }
        catch
        {
            result = false;
        }
        finally
        {
          
        }
        return result;
    }
    ///<summary>        
    /// 把PowerPoint文件转换成PDF格式文件       
    ///</summary>        
    ///<param name="sourcePath">源文件路径</param>     
    ///<param name="targetPath">目标文件路径</param> 
    ///<returns>true=转换成功</returns> 
    public bool PPTConvertToPDF(string sourcePath, string targetPath)
    {
        bool result;
        try
        {
            //PPT
            Presentation ppt = new Presentation(sourcePath);
            ppt.Save(targetPath, Aspose.Slides.Export.SaveFormat.Pdf);
            result = true;
        }
        catch
        {
            result = false;
        }
        finally
        {        
        }
        return result;
    }
}

2.做一个上传页面（核心代码）

        private string upFile()
        {
            int iTotal = Request.Files.Count;

            if (iTotal == 0)
            {
                _msg = "没有数据";
            }
            else
            {
                HttpPostedFile file = Request.Files[0];
                string path = "file\" + DateTime.Now.ToString("yyyy-MM-dd") + "\";
                string viewPath = "PDF\web\" + path;
                string ArticlePath = System.Web.HttpContext.Current.Server.MapPath("~") + viewPath;
                if (file.ContentLength > 0 || !string.IsNullOrEmpty(file.FileName))
                {
                    //建立图片主文件夹
                    if (!Directory.Exists(ArticlePath))
                    {
                        Directory.CreateDirectory(ArticlePath);
                    }
                    saveName = Path.GetFileName(file.FileName);
                    string extension = Path.GetExtension(file.FileName).ToLower();
                    string fileName = DateTime.Now.ToString("HH-mm-ss") + extension;
                    ArticlePath += fileName;
                    //保存文件
                    file.SaveAs(ArticlePath);
                    string pdfpath = ArticlePath.Substring(0, ArticlePath.Length - extension.Length) + ".pdf";
                    if (extension == ".doc" || extension == ".docx")
                    {
                        office2pdf.DOCConvertToPDF(ArticlePath, pdfpath);
                    }
                    else if (extension == ".ppt" || extension == ".pptx")
                    {
                        office2pdf.PPTConvertToPDF(ArticlePath, pdfpath);
                    }
                    else if (extension == ".xls" || extension == ".xlsx")
                    {
                        office2pdf.XLSConvertToPDF(ArticlePath, pdfpath);
                    }
                    else if (extension == ".pdf")
                    {
                    }
                    else
                    {
                        this.RegisterStartupScript("newWindow", "<script language='javascript'>alert('非法文件！')</script>");
                        return "";
                    }
                    DelFile(ArticlePath);
                    savePath = path + fileName.Substring(0, fileName.Length - extension.Length) + ".pdf";
                    return savePath;
                }
            }
            return "";

        }

3.效果如下

PPT    :

WORD:

4. DEMO： 下载 （新手上路，希望大家多多指点  ）