为目录中的pdf文件分配/写入标题

Question

嗨，我有一个C#代码片段，它将分配标题的pdf文件。但我试图做同样的每一个pdf文件在一个目录。有谁可以帮助我…？

下面是代码片段“PdfReader PdfReader=new PdfReader（filePath）；using（FileStream FileStream=new FileStream（newFilePath,filemode.create,fileaccess.write））{string title=PdfReader.info[”title“]as string；trace.writeline（”existing title：“+title)；

        PdfStamper pdfStamper = new PdfStamper(pdfReader, fileStream); 

        Hashtable newInfo = pdfReader.Info; 

        newInfo["Title"] = "New title"; 

        pdfStamper.MoreInfo = newInfo; 

        pdfReader.Close(); 
        pdfStamper.Close(); 
    } 

“

Answer 1

试试这个代码，希望对你有用...

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Windows.Forms;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string workingFolder = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
            string inputFile = Path.Combine(workingFolder, "Input.pdf");
            string outputFile = Path.Combine(workingFolder, "Output.pdf");

            PdfReader reader = new PdfReader(inputFile);
            using(FileStream fs = new FileStream(outputFile, FileMode.Create, FileAccess.Write, FileShare.None)){
                using (PdfStamper stamper = new PdfStamper(reader, fs))
                {
                    Dictionary<String, String> info = reader.Info;
                    info.Add("Title", "New title");

                    stamper.MoreInfo = info;
                    stamper.Close();
                }
            }

            this.Close();
        }
    }
}