LeadTools 加载文件问题

AvoCaDolol · AvoCaDolol

回复 10楼longgun119的帖子

您好，根据您的描述我的理解是：加载A.PDF文档到WebThumbnailViewer中，然后将A.PDF中的所有Page追加到B.PDF中，在这过程当中，您可以对A.PDF的Page进行旋转，不知我的理解是否正确？

longgun119 · longgun119

回复 11楼AvoCaDolol的帖子

先加载A.PDF文档到WebThumbnailViewer中，然后再加载B.PDF文档到WebThumbnailViewer中，最后将WebThumbnailViewer中显示的所有Page保存到A.PDF中
--->类似于将两个（多个）pdf文档合并，但在这个过程中有可能要删除WebThumbnailViewer中一些page在做保存

为什么通过以下代码加载不到文件：
         using (RasterCodecs codecs = new RasterCodecs())
         {
            codecs.Options.Pdf.InitialPath = Server.MapPath("~/Third Dlls/");
            Leadtools.Pdf.PDFFile pdf_file = new Leadtools.Pdf.PDFFile(WebThumbnailViewer1.Page.MapPath(sel_file));
         }
这里WebThumbnailViewer1.Page.MapPath(sel_file)得到的文件路径，在本地市存在的

AvoCaDolol · AvoCaDolol

回复 12楼longgun119的帖子

您好，您可以将B.PDF中的所有Page全部插入到A中，PDFFile.InserPageFrom方法即可，
但建议您对需要插入的A文档复制一份再做，避免同进程同时访问造成出错。
您的代码看不出问题，请您描述出错的代码行，或者给出错误信息。
谢谢。

longgun119 · longgun119

回复 13楼AvoCaDolol的帖子

Server Error in '/' Application.

Invalid file format

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: Leadtools.RasterException: Invalid file format

Source Error:

Line 265:                      Leadtools.Pdf.PDFFile pdf = new Leadtools.Pdf.PDFFile(WebThumbnailViewer1.Page.MapPath(info.Url));
Line 266:                      if (i < pdf_file.GetPageCount())
Line 267:                         pdf_file.ReplacePagesFrom(i + 1, pdf, 1, 1);
Line 268:                      else
Line 269:                         pdf_file.InsertPagesFrom(i + 1, pdf, 1, 1);

Source File: F:\work\LeadToolsDemo(new)\LeadToolsDemo\DocumentCleanDemo.aspx.cs Line: 267

Stack Trace:

[RasterException: Invalid file format]
Leadtools.RasterException.CheckErrorCode(Int32 code) +61
Leadtools.Pdf.PDFFile.ReplacePagesFrom(Int32 replacePageNumber, PDFFile sourceFile, Int32 firstPageNumber, Int32 lastPageNumber) +678
DocumentCleanDemo.img_save_Click(Object sender, ImageClickEventArgs e) in F:\work\LeadToolsDemo(new)\LeadToolsDemo\DocumentCleanDemo.aspx.cs:267
System.Web.UI.WebControls.ImageButton.OnClick(ImageClickEventArgs e) +146
System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +174
System.Web.UI.WebControls.ImageButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +39
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +37
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +87
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4226

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1031

longgun119 · longgun119

回复 13楼AvoCaDolol的帖子

前端源码：
<%@ Page Language="C#" AutoEventWireup="true" Inherits="DocumentCleanDemo" CodeBehind="DocumentCleanDemo.aspx.cs" %>

<%@ Register Assembly="Leadtools.Web" Namespace="Leadtools.Web.Controls" TagPrefix="ltwf" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<meta http-equiv="Expires" content="-1" />
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta name="robots" content="index, follow" />
<title>Document Clean Demo</title>
<meta name="description" content="" />
<meta name="keywords" content="" />
<link href="Resources/css/main.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="Resources/DocumentCleanButtons.js"></script>
</head>
<body>
<form id="form1" runat="server">
<div id="container">
      <center>
         <table cellpadding="0" cellspacing="0" border="0" style="border-color: White; width: 1200px">
            <tr>
                  <td style="border: 0; padding-top: 20px; padding-bottom: 10px; font-size: large;">
                     <asp:FileUpload ID="FileUpload1" runat="server" Width="500px" Height="25px" />&nbsp;&nbsp;
                     <asp:Button ID="Button1" runat="server" Text="Upload" OnClick="Button1_Click" />&nbsp;&nbsp;
                     <asp

abel ID="LabMessage1" runat="server" ForeColor="red"/>
                  </td>
                  <td></td>
            </tr>
            <tr>
                  <td valign="top" style="border: 0">
                     <ltwf:WebThumbnailViewer ID="WebThumbnailViewer1" runat="server" BorderStyle="Solid"
                        BorderWidth="1px" Height="160px" Width="800px" ViewerID="WebImageViewer1" VerticalAlignMode="Center"
                        ThumbStyle-HoverBackColor="#D0D0D0" SelectedThumbStyle-BackColor="DarkRed" SelectedThumbStyle-HoverBackColor="Red"
                        BackColor="White" />
                  </td>
                  <td align="center" valign="top">
                     <div class="toolbar" style="width:400px; height:160px; padding-top:0; text-align:center; overflow-x:auto;">
                        <asp

ataList ID="DataList1" runat="server" EnableViewState="true" Height="100%" Width="400px" RepeatDirection="Horizontal"
                              onitemcommand="DataList1_ItemCommand">
                              <ItemTemplate>
                                 <div style=" margin-right:10px;" onmouseover="c=this.style.backgroundColor;this.style.backgroundColor='#FFFFFF';" onmouseout="this.style.backgroundColor=c;">
                                    <asp:ImageButton ID="img_file" CommandName="load_file" runat="server" ImageUrl="/resources/document.png" Width="80px" /><br />
                                    <asp:CheckBox ID="cb_file" runat="server" /><asp

abel ID="lab_file" runat="server" Text='<%# Eval("file_name") %>'></asp

abel>
                                 </div>
                              </ItemTemplate>
                        </asp

ataList>
                     </div>
                  </td>
            </tr>
            <tr>
                  <td style="border: 0;">
                     <div id="infoBar" class="infoBar" style="width: 800px; background-color: Gray; border: 0;">
                        <div id="zoom" class="section" style="border: 0; width:90%;">
                              <a id="btnZoomIn" title="Zoom In" style="cursor: pointer"></a>
                              <a id="btnZoomOut" title="Zoom Out" style="cursor: pointer"></a>
                              <a id="btnFit" title="Fit" style="cursor: pointer"></a>
                              <a id="btnFitWidth" title="Fit Width" style="cursor: pointer"></a>
                              <a id="btnView1to1" title="Full View" style="cursor: pointer"></a>
                              <a id="btnPan" title="change the mouse pointer to Pan" style="cursor: pointer;"></a>
                              <a id="btnRotateLeft90" title="Rotate Left 90 degrees" style="cursor: pointer;"></a>
                              <a id="btnRotateRight" title="Rotate Right 90 degrees" style="cursor: pointer;"></a>
                              <a id="btnFlipHor" title="Flip Horizontal" style="cursor: pointer;"></a>
                              <a id="btnFlipVer" title="Flip Vertical" style="cursor: pointer;"></a>
                              <a id="btnResetImage" title="Reload the original page." style="cursor: pointer;"></a>
                              <a title="Save File"><asp:ImageButton ID="img_save" runat="server" ImageUrl="/resources/save.png" Height="20px" Width="20px" onclick="img_save_Click" /></a>
                              <a title="Delete Page"><asp:ImageButton ID="img_del_page" runat="server" ImageUrl="/resources/delete.png" Height="20px" Width="20px" onclick="img_del_page_Click" /></a>
                        </div>
                     </div>
                  </td>
                  <td style="border: 0;">
                     <div id="infoBar2" class="infoBar" style="width: 400px; background-color: Gray; border: 0;">
                        <div class="section" style="border: 0; width:90%;">
                              <a title="Add Page" style=" margin-left:10px;">
                              <asp:ImageButton ID="img_add_page" runat="server" ImageUrl="/resources/add.png"
                                 Height="20px" Width="20px" onclick="img_add_page_Click" /></a>
                              <a title="Delete File" style=" margin-left:5px;">
                              <asp:ImageButton ID="img_del_file" runat="server"
                                 ImageUrl="/resources/delete.png" Height="20px" Width="20px"
                                 onclick="img_del_file_Click" /></a>
                        </div>
                     </div>
                  </td>
            </tr>
            <tr>
                  <td align="center" valign="top" style="border: 0; width: 800px;">
                     <ltwf:WebImageViewer ID="WebImageViewer1" runat="server" BorderStyle="Solid" BorderWidth="1px"
                        Height="650px" Width="800px" HorizontalAlignMode="Center" VerticalAlignMode="Center"
                        ImageFrameSize="1" DropShadowSize="1" />
                  </td>
                  <td></td>
            </tr>
         </table>
      </center>
</div>
<div style=" display:none;">
      <asp:HiddenField ID="hid_file_path" runat="server" />
</div>
<script type="text/javascript">
      function btnResetImage_onclick() {
         var index = WebThumbnailViewer1.getSelectedIndex();
         var hid_file_path = document.getElementById("<%=hid_file_path.ClientID%>");
         if (hid_file_path != null)
            WebImageViewer1.OpenImageUrl(hid_file_path.value, index);
      }
</script>
</form>
</body>
</html>

后台代码：
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Leadtools.Web.Controls;
using Leadtools.Codecs;
using System.IO;
using Leadtools.Forms.DocumentReaders;

public partial class DocumentCleanDemo : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
      if (!IsPostBack)
      {
         #if LEADTOOLS_V175_OR_LATER
            Support.SetLicense();
         #else
            Support.Unlock();
         #endif // #if LEADTOOLS_V175_OR_LATER

         //Check if Kernel has expired
         if (Leadtools.RasterSupport.KernelExpired)
         {
            string msg = "Your license file is missing, invalid or expired. LEADTOOLS will not function. Please contact LEAD Sales for information on obtaining a valid license.";
            Page.ClientScript.RegisterStartupScript(this.GetType(), "KernalExpiredMessage", "alert('" + msg + "')", true);
            return;
         }

         //// Load RasterCodecs options from the configuration file
         //if (ConfigurationManager.AppSettings["RasterPdfInitialPath"] != null)
         //{
         // string pdfInitialPath = ConfigurationManager.AppSettings["RasterPdfInitialPath"];
         // if (!string.IsNullOrEmpty(pdfInitialPath))
         // {
         //       // Setup default RasterCodecs options, these options are per thread
         //       // and will be used by any RasterCodecs object created after this
         //       using (RasterCodecs codecs = new RasterCodecs())
         //       {
         //          codecs.Options.Pdf.InitialPath = pdfInitialPath;
         //       }
         // }
         //}

         WebThumbnailViewer1.InputProfile = Server.MapPath("Resources\\InputProfile.xml");
         WebImageViewer1.InputProfile = Server.MapPath("Resources\\InputProfile.xml");
         get_upload_file();
      }
}

private void get_upload_file()
{
      string dirPath = Server.MapPath("~/upload/");
      if (Directory.Exists(dirPath))
      {
         //获得目录信息
         DirectoryInfo dir = new DirectoryInfo(dirPath);
         //获得目录文件列表
         FileInfo[] files = dir.GetFiles("*.*");
         string[] fileNames = new string[files.Length];

         //临时数据表
         DataTable dt = new DataTable();
         dt.Columns.Add("file_name");

         foreach (FileInfo fileInfo in files)
         {
            DataRow dr = dt.NewRow();
            dr["file_name"] = fileInfo.Name;
            dt.Rows.Add(dr);
         }

         DataList1.DataSource = dt;
         DataList1.DataBind();

         if (hid_file_path.Value == string.Empty && dt.Rows.Count > 0)
            Load_File(@"upload\" + dt.Rows[0][0], true);
      }
}

protected void Button1_Click(object sender, EventArgs e)
{
      bool fileOK = false;
      string path = Server.MapPath("~/upload/");
      if (!System.IO.Directory.Exists(path))
         System.IO.Directory.CreateDirectory(path);

      if (FileUpload1.HasFile)
      {
         String fileExtension = System.IO.Path.GetExtension(FileUpload1.FileName).ToLower();
         String[] allowedExtensions = { ".gif", ".png", ".bmp", ".jpg", ".pdf", ".tif", ".tiff", ".doc", ".docx", ".txt", ".ppt", ".pptx", ".jbg", ".cmp", ".xlsx", ".xls" };
         for (int i = 0; i < allowedExtensions.Length; i++)
         {
            if (fileExtension == allowedExtensions)
            {
                  fileOK = true;
            }
         }
      }
      if (fileOK)
      {
         try
         {
            string file_name = DateTime.Now.ToString("yyyyMMddHHmmssfff") + FileUpload1.FileName.Substring(FileUpload1.FileName.LastIndexOf("."));
            FileUpload1.SaveAs(path + file_name);
            get_upload_file();
            Load_File(@"upload\" + file_name, true);
            LabMessage1.Text = "文件上传成功.";
         }
         catch
         {
            LabMessage1.Text = "文件上传失败.";
         }
      }
      else
      {
         LabMessage1.Text = "该类型文件无法上传.";
      }
}

static string sel_file = "";
private void Load_File(string file_path, bool is_clear)
{
      using (RasterCodecs codecs = new RasterCodecs())
      {
         //if (file_path.Substring(file_path.LastIndexOf(".") + 1).ToLower() == "txt")
         //{
            codecs.Options.Txt.Load.Enabled = true;
            //codecs.Options.Txt.Load.FontColor = new Leadtools.RasterColor(255, 0, 0);
            //codecs.Options.Txt.Load.FontSize = 12;
            //codecs.Options.Txt.Load.Bold = true;
            //codecs.Options.RasterizeDocument.Load.LeftMargin = 1.00;
            //codecs.Options.RasterizeDocument.Load.TopMargin = 1.25;
            //codecs.Options.RasterizeDocument.Load.PageWidth = 8.50;
            //codecs.Options.RasterizeDocument.Load.PageHeight = 11.00;
            //codecs.Options.RasterizeDocument.Load.BottomMargin = 1.00;
            //codecs.Options.RasterizeDocument.Load.RightMargin = 1.25;
         //}

         CodecsImageInfo info = codecs.GetInformation(WebThumbnailViewer1.Page.MapPath(file_path), true);

         if (is_clear)
         {
            hid_file_path.Value = sel_file = file_path;
            WebThumbnailViewer1.Clear();
            WebImageViewer1.Clear();
         }

         int page_index = WebThumbnailViewer1.Count;
         if (info.TotalPages > 1)
         {
            string thumbText = string.Empty;
            for (int i = 0; i < info.TotalPages; i++)
            {
                  page_index += 1;
                  thumbText = string.Format("age{0}", page_index);
                  WebThumbnailViewer1.Add(file_path, i + 1, i + 1, thumbText);
            }
         }
         else
         {
            page_index += 1;
            WebThumbnailViewer1.Add(file_path, 1, 1, "age" + page_index);
         }
      }

      WebThumbnailViewer1.SelectedIndex = 0;
      WebImageViewer1.UseDpi = true;
      WebImageViewer1.MouseInteractiveMode.LeftButton = ImageViewerMouseInteractiveMode.Pan;
}

protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
{
      if (e.CommandName == "load_file")
      {
         Label lab_file = (Label)e.Item.FindControl("lab_file");
         Load_File(@"upload\" + lab_file.Text, true);
      }
}

protected void img_del_page_Click(object sender, ImageClickEventArgs e)
{
      if (WebThumbnailViewer1.SelectedIndex >= 0)
      {
         WebThumbnailViewer1.Remove(WebThumbnailViewer1.SelectedIndex, WebThumbnailViewer1.SelectedIndex);

         if (sel_file.Substring(sel_file.LastIndexOf(".") + 1).ToLower() == "pdf")
         {
            using (RasterCodecs codecs = new RasterCodecs())
            {
                  codecs.Options.Pdf.InitialPath = Server.MapPath("~/Third Dlls/");
                  Leadtools.Pdf.PDFFile pdf_file = new Leadtools.Pdf.PDFFile(WebThumbnailViewer1.Page.MapPath(sel_file));
                  pdf_file.DeletePages(WebThumbnailViewer1.SelectedIndex + 1, WebThumbnailViewer1.SelectedIndex + 1, WebThumbnailViewer1.Page.MapPath(sel_file));
            }
         }
         else
         {
            using (RasterCodecs codecs = new RasterCodecs())
            {
                  codecs.DeletePage(WebThumbnailViewer1.Page.MapPath(sel_file), WebThumbnailViewer1.SelectedIndex + 1);
                  //using (Leadtools.RasterImage image = codecs.Load(WebThumbnailViewer1.Page.MapPath(sel_file)))
                  //{
                  // codecs.Save(image, WebThumbnailViewer1.Page.MapPath(sel_file), image.OriginalFormat, 0);
                  //}
            }

            //DocumentReaderLoadOptions loadOptions = new DocumentReaderLoadOptions();
            //using (DocumentReader reader = DocumentReader.Create(WebThumbnailViewer1.Page.MapPath(sel_file), loadOptions))
            //{
            // reader.RasterCodecsInstance.DeletePage(WebThumbnailViewer1.Page.MapPath(sel_file), WebThumbnailViewer1.SelectedIndex + 1);
            //}
         }

         Load_File(sel_file, true);
      }
}

protected void img_save_Click(object sender, ImageClickEventArgs e)
{
      //if (WebThumbnailViewer1.SelectedIndex >= 0)
      //{
      // using (RasterCodecs codecs = new RasterCodecs())
      // {
      //       ThumbnailInfo info = WebThumbnailViewer1.GetThumbnailInfo(WebThumbnailViewer1.SelectedIndex);
      //       using (Leadtools.RasterImage image = codecs.Load(WebThumbnailViewer1.Page.MapPath(info.CacheFileName)))
      //       {
      //          codecs.Save(image, WebThumbnailViewer1.Page.MapPath(sel_file), image.OriginalFormat, image.BitsPerPixel, 1, 1, info.Page, CodecsSavePageMode.Replace);
      //       }
      // }
      //}

      if (sel_file.Substring(sel_file.LastIndexOf(".") + 1).ToLower() == "pdf")
      {
         using (RasterCodecs codecs = new RasterCodecs())
         {
            codecs.Options.Pdf.InitialPath = Server.MapPath("~/Third Dlls/");
            Leadtools.Pdf.PDFFile pdf_file = new Leadtools.Pdf.PDFFile(WebThumbnailViewer1.Page.MapPath(sel_file));
            for (int i = 0; i < WebThumbnailViewer1.Count; i++)
            {
                  ThumbnailInfo info = WebThumbnailViewer1.GetThumbnailInfo(i);
                  if (info.CacheFileName.Length > 0)
                  {
                     Leadtools.Pdf.PDFFile pdf = new Leadtools.Pdf.PDFFile(WebThumbnailViewer1.Page.MapPath(info.CacheFileName));
                     if (i < pdf_file.GetPageCount())
                        pdf_file.ReplacePagesFrom(i + 1, pdf, 1, 1);
                     else
                        pdf_file.InsertPagesFrom(i + 1, pdf, 1, 1);

                     //using (Leadtools.RasterImage image = codecs.Load(WebThumbnailViewer1.Page.MapPath(info.CacheFileName)))
                     //{
                     // if (i < page_count)
                     //       codecs.Save(image, WebThumbnailViewer1.Page.MapPath(sel_file), image.OriginalFormat, image.BitsPerPixel, 1, 1, i + 1, CodecsSavePageMode.Replace);
                     // else
                     //       codecs.Save(image, WebThumbnailViewer1.Page.MapPath(sel_file), image.OriginalFormat, image.BitsPerPixel, 1, 1, i + 1, CodecsSavePageMode.Append);
                     //}
                  }
                  else
                  {
                     Leadtools.Pdf.PDFFile pdf = new Leadtools.Pdf.PDFFile(WebThumbnailViewer1.Page.MapPath(info.Url));
                     if (i < pdf_file.GetPageCount())
                        pdf_file.ReplacePagesFrom(i + 1, pdf, 1, 1);
                     else
                        pdf_file.InsertPagesFrom(i + 1, pdf, 1, 1);
                  }
            }
         }
      }
      else
      {
         using (RasterCodecs codecs = new RasterCodecs())
         {
            CodecsImageInfo img_info = codecs.GetInformation(WebThumbnailViewer1.Page.MapPath(sel_file), true);
            for (int i = 0; i < WebThumbnailViewer1.Count; i++)
            {
                  ThumbnailInfo info = WebThumbnailViewer1.GetThumbnailInfo(i);
                  if (info.CacheFileName.Length > 0)
                  {
                     using (Leadtools.RasterImage image = codecs.Load(WebThumbnailViewer1.Page.MapPath(info.CacheFileName)))
                     {
                        if (i < img_info.TotalPages)
                              codecs.Save(image, WebThumbnailViewer1.Page.MapPath(sel_file), image.OriginalFormat, image.BitsPerPixel, 1, 1, info.Page, CodecsSavePageMode.Replace);
                        else
                              codecs.Save(image, WebThumbnailViewer1.Page.MapPath(sel_file), image.OriginalFormat, image.BitsPerPixel, 1, 1, info.Page, CodecsSavePageMode.Append);
                     }
                  }
                  else
                  {
                     using (Leadtools.RasterImage image = codecs.Load(WebThumbnailViewer1.Page.MapPath(info.Url), 0, CodecsLoadByteOrder.BgrOrGray, info.Page, info.Page))
                     {
                        if (i < img_info.TotalPages)
                              codecs.Save(image, WebThumbnailViewer1.Page.MapPath(sel_file), image.OriginalFormat, image.BitsPerPixel, 1, 1, info.Page, CodecsSavePageMode.Replace);
                        else
                              codecs.Save(image, WebThumbnailViewer1.Page.MapPath(sel_file), image.OriginalFormat, image.BitsPerPixel, 1, 1, info.Page, CodecsSavePageMode.Append);
                     }
                  }
            }
         }
      }
}

protected void img_add_page_Click(object sender, ImageClickEventArgs e)
{
      foreach (DataListItem item in DataList1.Items)
      {
         CheckBox cb = (CheckBox)item.FindControl("cb_file");
         if (cb.Checked == true)
         {
            Label lab_file = (Label)item.FindControl("lab_file");
            Load_File(@"upload\" + lab_file.Text, false);
            cb.Checked = false;
         }
      }
}

protected void img_del_file_Click(object sender, ImageClickEventArgs e)
{
      int check_num = 0;
      foreach (DataListItem item in DataList1.Items)
      {
         CheckBox cb = (CheckBox)item.FindControl("cb_file");
         if (cb.Checked == true)
         {
            check_num += 1;
            Label lab_file = (Label)item.FindControl("lab_file");
            string file_path = WebThumbnailViewer1.Page.MapPath(@"upload\" + lab_file.Text);
            if (File.Exists(file_path))
            {
                  File.Delete(file_path);
                  if (@"upload\" + lab_file.Text == sel_file)
                     hid_file_path.Value = string.Empty;
            }
         }
      }

      if (check_num > 0)
         get_upload_file();
}

}

AvoCaDolol · AvoCaDolol

回复 15楼longgun119的帖子

您好，您的代码我已经测试过，没有问题，我将一个PDF文档上传后，代码将这个文档的所有页都替换为了第一页。
我这里运行正常。无法再现您的错误。
请您查看一下是您的工程的引用是否与我一样：
Leadtools.dll
Leadtools.Codecs.dll
Leadtools.Codecs.Bmp.dll
Leadtools.Codecs.Cmp.dll
Leadtools.Codecs.Dox.dll
Leadtools.Codecs.Gif.dll
Leadtools.Codecs.Png.dll
Leadtools.Codecs.Rtf.dll
Leadtools.Codecs.Tif.dll
Leadtools.Codecs.Txt.dll
Leadtools.Codecs.Xls.dll
Leadtools.Codecs.Xlx.dll
Leadtools.Pdf.dll
Leadtools.Web.dll

如果有缺少的请添加。
以上，谢谢。

longgun119 · longgun119

回复 16楼AvoCaDolol的帖子

都已引用上

我这里想实现的是：在保存pdf的时候，用WebThumbnailViewer中的page替换原pdf中的page（页码在原pdf页数之间的就替换，页码超出的就添加）

还有我发现一个问题：
当pdf文件只有一页时，pdf_file.GetPageCount()取到的值是空的，所以当它执行到 if (i < pdf_file.GetPageCount()) 这里的时候就会抛错。。。。

pdf与tiff之间的互转可以实现？

AvoCaDolol · AvoCaDolol

回复 17楼longgun119的帖子

您好，问题已经收到，我这边调查一下，稍后给你回复。

longgun119 · longgun119

回复 18楼AvoCaDolol的帖子

你好，为什么在32位win7系统上运行C:\LEADTOOLS 19\Examples\DotNet\CS中的一些例子会出现以下错误：

C:\LEADTOOLS 19\Examples\DotNet\CS中的例子都是在64位开发环境中创建的吗？
我修改项目属性后再次编译还是出现一样的错误，修改如下：

AvoCaDolol · AvoCaDolol

回复 19楼longgun119的帖子

您好，您把Platform target 从Any Cpu改为x86试试。

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