如何在C＃中搜索pdf中的文本（执行匹配）＃

Question

我正在使用我的应用程序。我想通过c＃中的axacropdf控件来搜索文本（完全匹配）并确定位置并通过pdf突出显示文本。我怎样才能做到这一点。我搜索了很多主题，但没有帮助。我怎样才能达到这个目标。你有任何代码或DLL为此。请给我带一些代码。

谢谢

Answer 1

使用Bytescout.PDFExtractor;

 try 
     { 
      if (openFileDialog1.ShowDialog() == DialogResult.OK) 
      { 
       FileName = openFileDialog1.FileName; 

       string FName = FileName; 
       int a = FileName.LastIndexOf('\\'); 
       txtFileName.Text = FileName.Substring(a + 1); 

       axAcroPDF1.LoadFile(FileName); 

       FileInfo fi = new FileInfo(FileName); 
       string PDFFileName = fi.Name.ToString(); 
       double filesize = (fi.Length/1024F/1024F); 
       string size = filesize.ToString("0.00 MB"); 
       string CreationDate = fi.CreationTime.ToString(); 
       string LastAccessDate = fi.LastAccessTime.ToString(); 
       string ModifiedDate = fi.LastWriteTime.ToString(); 

       lblVersion.Text = "File Name   : " + PDFFileName + "\nSize     : " + size + "\nCreation Date : " + CreationDate + "\nModified Date : " + ModifiedDate; 

       TextExtractor extractor = new TextExtractor(); 
       extractor.RegistrationName = "Demo"; 
       extractor.RegistrationKey = "Demo"; 
       extractor.LoadDocumentFromFile(FileName); 

       int pageCount = extractor.GetPageCount(); 

       RectangleF location; 

       for (int s = 0; s <= Keywords.Length - 1; s++) 
       { 



        if (Keywords[s] != "") 
        { 
         TreeNode tNode = new TreeNode(); 

         tNode = treeView1.Nodes.Add(Keywords[s]); 


         for (int i = 0; i < pageCount; i++) 
         { 
          if (extractor.Find(i, Keywords[s], false, out location)) 
          { 
           do 
           { 
            int j = i; 
            tNode.Nodes.Add((j+1).ToString() + "  " + location.ToString()); 

            float X = location.X; 
            float Y = location.Y; 
            float Width = location.Width; 
            float Height = location.Height; 




            float Left = location.Left; 
            float Right = location.Right; 
            float Top = location.Top; 
            float Bottom = location.Bottom; 


            //axAcroPDF1.setCurrentHighlight(Convert.ToInt32(X), Convert.ToInt32(Y), Convert.ToInt32(Width), Convert.ToInt32(Height)); 



           } 
           while (extractor.FindNext(out location)); 
          } 
         } 
        } 
        else 
        { 

        } 
       }  
      } 
     } 
     catch (Exception ex) 
     { 
      MessageBox.Show(ex.Message.ToString(), "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error); 
     }