本文主要是介绍基于C#实现PDF文件合并工具，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
《基于C#实现PDF文件合并工具》这篇文章主要为大家详细介绍了如何基于C#实现一个简单的PDF文件合并工具,文中的示例代码简洁易懂,有需要的小伙伴可以跟随小编一起学习一下...
界面
主要用于发票PDF文件的合并。经常出差要报销的很有用。
代码
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Diagnostics; using System.Drawing; using System.IO; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using iTextSharp.text; using iTextSharp.text.pdf; //using PdfSharp.Pdf; //using PdfSharp.Pdf.IO; namespace PdfMergeApp { public partial class Form1 : Form { public Form1() { InitializeComponent(); btnOpenDir.Enabled = false; } private List<string> pdfList; private string outputPdfDir; private void bntSelectDir_Click(object sender, EventArgs e) { FolderBrowserDialog folderBrowserDialog = new FolderBrowserDialog(); DialogResult dialogResult = folderBrowserDialog.ShowDialog(); if (dialogResult == DialogResult.OK) { string selectedFolderPath = folderBrowserDialog.SelectedPath; //Console.WriteLine("选择的目录是: " + selectedFolderPath); txtFileDir.Text = selectedFolderPath; pdfList = Directory.GetFiles(selectedFolderPath, "*.pdf").ToList(); if (pdfList != null && pdfList.Count > 0) { pdfList = pdfList.OrderBy(t => t).ToList(); } addPdfList(); } } private void addPdfList() { this.listViewWorkLogs.Items.Clear(); int no = 1; foreach (var item in pdfList) { ListViewItem lvItem = new ListViewItem(); lvItem.ForeColor = Color.Blue; lvItem.Text = no.ToString(); lvItem.StateImageIndex = 0; lvItem.Tag = no - 1; lvItem.SubItems.Add(item); this.listViewWorkLogs.Items.Add(lvItem); no++; } }China编程 /// <summary> /// 合并多个PDF文件为一个PDF文件 /// </summary> /// <param name="inputFolderPath"></param> /// <param name="outputFolderPath"></param> /// <param name="outputPdfName"></param> public void MergePDFs(string outputFilePath, params string[] inputFilePaths) { // 获取输入文件夹中所有的PDF文件 //string[] inputFiles = Directory.GetFiles(inputFolderPath, "*.pdf"); // 创建输出PDF文件路径 //string outputPdfPath = Path.Combine(outputFolderPath, outputPdfName); // 检查新输出文件是否已存在 if (File.Exists(outputFilePath)) { // 如果已存在，则删除旧文件并创建新文件 Fhttp://www.chinasem.cnile.Delete(outputFilePath); } // 创建输出PDF文件 using (FileStream stream = new FileStream(outputFilePath, FileMode.Create)) { Document pdfDoc = new Document(); PdfCopy pdf = new PdfCopy(pdfDoc, stream); pdfDoc.Open(); foreach (string file in inputFilePaths) { // 读取每个PDF文件并将其页面添加到输出PDF中 PdfReader reader = new PdfReader(file); int n = reader.NumberOfPages; for (int i = 1; i <= n; i++) { pdf.AddPage(pdf.GetImportedPage(reader, i)); } reader.Close(); } if (pdfDoc != null) pdfDoc.Close(); stream.Close(); } } /// <summary> /// 合并多个PDF文件为一个PDF文件 /// </summary> /// <param name="inputFolderPath"></param> /// <param name="outputFolderPath"></param> /// <param name="outputPdfName"></param> public void MergePDFs(string inputFolderPath, string outputFolderPath, string outputPdfName) { // 获取输入文件夹中所有的PDF文件 string[] inputFiles = Directory.GetFiles(inputFolderPath, "*.pdf"); // 创建输出PDF文件路径 string outputPdfPath = Path.Combine(outputFolderPath, outputPdfName); outputPdfPath.CreateDirectoryByPath(); // 创建输出PDF文件 using (FileStream stream = new FileStream(outputPdfPath, FileMode.Create)) { Document pdfDoc = new Document(); PdfCopy pdf = new PdfCopy(pdfDoc, stream); pdfDoc.Open(); foreach (string file in inputFiles) { // 读取每个PDF文件并将其页面添加到输出PDF中 PdfReader reader = new PdfReader(file); int n = reader.NumberOfPages; for (int i = 1; i <= n; i++) { pdf.AddPage(pdf.GetImportedPage(reader, i)); } reader.Close(); } if (pdfDoc != null) pdfDoc.Close(); stream.Close(); } string newOutputPdfPath = Path.Combine(outputFolderPath, "AllPDF_Merged.pdf"); //string newOutputPdfPath = Path.Combine(outputFolderPath, outputPdfName); // 检查新输出文件是否已存在 if (File.Exists(newOutputPdfPath)) { // 如果已存在，则删除旧文件并创建新文件 File.Delete(newOutputPdfPath); } // 重命名输出PDF文件 File.Move(outputPdfPath, newOutputPdfPath); } /// <summary> /// 合并多个PDF文件为一个PDF文件 /// </summary> /// <param name="inputFolderPath"></param> /// <param name="outputFolderPath"></param> /// <param name="outputPdfName"></param> public bool MergePDFs(string outputFolderPath, string outputPdfName) { var isOk = false; try { // 获取输入文件夹中所有的PDF文件 //string[] inputFiles = Directory.GetFiles(inputFolderPath, "*.pdf"); // 创建输出PDF文件路径 string outputPdfPath = Path.Combine(outputFolderPath, outputPdfName); outputPdfPath.CreateDirectoryByPath(); // 创建输出PDF文件 using (FileStream stream = new FileStream(outputPdfPath, FileMode.Create)) { Document pdfDoc = new Document(); PdfCopy pdf = new PdfCopy(pdfDoc, stream); pdfDoc.Open(); foreach (string file in pdfList) { // 读取每个PDF文件并将其页面添加到输出PDF中 PdfReader reader = new PdfReader(file); int n = reader.NumberOfPages; for (int i = 1; i <= n; i++) { pdf.AddPage(pdf.GetImportedPage(reader, i)); } reader.Close(); } if (pdfDoc != null) pdfDoc.Close(); stream.Close(); } string newOutputPdfPath = Path.Combine(outputFolderPath, "AllPDF_Merged.pdf"); //string newOutputPdfPath = Path.Combine(outputFolderPath, outputPdfName); // 检查新输出文件是否已存在 if (File.Exists(newOutputPdfPath)) { // 如果已存在，则删除旧文件并创建新文件 File.Delete(newOutputPdfPath); } // 重命名输出PDF文件 File.Move(outputPdfPath, newOutputPdfPath); isOk = true; } catch (Exception ex) { MessageBox.Show("合并异常:" + ex.Message); } return isOk; } private void btnMergePDF_Click(object sender, EventArgs e) { if (pdfList != null && pdfList.Count > 0) { var outputFilePath = txtFileDir.Text + "\\MergePDF_" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".pdf"; //MergePDFs(outputFilePath, pdfList.ToArray()); var outputPdfName = "MergePDF_" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".pdf"; var outputPdfNameAll = txtFileDir.Text + "\\MergePDF\\" + outputPdfName; outputPdfDir = txtFileDir.Text + "\\MergePDF"; //MergePDFs(txtFileDir.Text, txtFileDir.Text+ "\\MergePDF", outputPdfName); var isOk = MergePDFs(outputPdfDir, outputPdfName); if (isOk) { lblResult.Text = "合并完成。输出文件目录:" + outputPdfNameAll; btnOpenDir.Enabled = true; MessageBox.Show("合并完成"); } } else { MessageBox.Show("你没有要合并的PDF文件"); } } private void btnOpenDir_Click(object sender, EventArgs e) { if (!string.IsNullOrEmpty(outputPdfDir)) { OpenDirectory(outputPdfDir); } else { MessageBox.Show("合并文件没有生成"); } } static void OpenDirectory(string path) { ProcessStartInfo startInfo = new ProcessStartInfo { Arguments = path, FileName = "explorer.exe" }; Process.Start(startInfo); } private void listViewWorkLogs_ItemCheck(object sender, ItemChecwww.chinasem.cnkEventArgs e) { var listViewItem = sender as ListViewItem; var index = listViewItem.Tag; var a = 0; } private int selectIndex; private int newIndex; //private string selectFileName; private void listViewWorkLogs_SelectedIndexChanged(object sender, EventArgs e) { if (listViewWorkLogs.SelectedItems.Count > 0) { var listViewItem = listViewWorkLogs.SelectedItems[0]; selectIndex = (int)listViewItem.Tag; newIndex = selectIndex; } } private void btnMoveUp_Click(object sender, EventArgs e) { if (pdfList != null && pdfList.Count > 0) { newIndex--; if (newIndex >= 0 && newIndex < pdfList.Count) { var selectFileName = pdfList[selectIndex]; pdfList[selectIndex] = pdfList[newIndex]; pdfList[newIndex] = selectFileName; selectIndex = newIndex; addPdfList(); } else { newIndex = 0; } } } private void btnMoveDown_Click(object sender, EventArgs e) { if (pdfList != null && pdfList.Count > 0) { newIndex++; if (newIndex < pdfList.Count) { var selectFileName = pdfList[selectIndex]; pdfList[selectIndex] = pdfList[newIndex]; pdfList[newIndex] = selectFileName; selectIndex = newIndex; addPdfList(); } hSFiPr else { newIndex = pdfList.Count - 1; } } } } }
UI代码
namespace PdfMergeApp
{
partial class Form1
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要修改
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.txtFileDir = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.bntSelectDir = new System.Windows.Forms.Button();
this.btnMergePDF = new System.Windows.Forms.Button();
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.listViewWorkLogs = new System.Windows.Forms.ListView();
this.columnHeader1 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
this.columnHeader2 = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
this.groupBox2 = new System.Windows.Forms.GroupBox();
this.lblResult = new System.Windows.Forms.Label();
this.btnOpenDir = new System.Windows.Forms.Button();
this.btnMoveUp = new System.Windows.Forms.Button();
this.btnMoveDown = new System.Windows.Forms.Button();
this.groupBox1.SuspendLayout();
this.groupBox2.SuspendLayout();
this.SuspendLayout();
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(12, 9);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(75, 15);
this.label1.TabIndex = 0;
this.label1.Text = "选择目录:";
//
// txtFileDir
//
this.txtFileDir.Location = new System.Drawing.Point(90, 6);
this.txtFileDir.Name = "txtFileDir";
this.txtFileDir.ReadOnly = true;
this.txtFileDir.Size = new System.Drawing.Size(491, 25);
this.txtFileDir.TabIndex = 1;
//
// button1
//
this.button1.Location = new System.Drawing.Point(120, 141);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(8, 8);
this.button1.TabIndex = 2;
this.button1.Text = "button1";
this.button1.UseVisualStyleBackColor = true;
//
// bntSelectDir
//
this.bntSelectDir.Location = new System.Drawing.Point(600, 6);
this.bntSelectDir.Name = "bntSelectDir";
this.bntSelectDir.Size = new System.Drawing.Size(118, 35);
this.bntSelectDir.TabIndex = 3;
this.bntSelectDir.Text = "选择目录";
this.bntSelectDir.UseVisualStyleBackColor = true;
this.bntSelectDir.Click += new System.EventHandler(this.bntSelectDir_Click);
//
// btnMergePDF
//
China编程 this.btnMergePDF.Location = new System.Drawing.Point(724, 7);
this.btnMergePDF.Name = "btnMergePDF";
this.btnMergePDF.Size = new System.Drawing.Size(94, 32);
this.btnMergePDF.TabIndex = 3;
this.btnMergePDF.Text = "合并PDF";
this.btnMergePDF.UseVisualStyleBackColor = true;
this.btnMergePDF.Click += new System.EventHandler(this.btnMergePDF_Click);
//
// groupBox1
//
this.groupBox1.Controls.Add(this.listViewWorkLogs);
this.groupBox1.Location = new System.Drawing.Point(15, 49);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(764, 589);
this.groupBox1.TabIndex = 4;
this.groupBox1.TabStop = false;
this.groupBox1.Text = "文件列表";
//
// listViewWorkLogs
//
this.listViewWorkLogs.BackColor = System.Drawing.SystemColors.InactiveCaption;
this.listViewWorkLogs.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
this.columnHeader1,
this.columnHeader2});
this.listViewWorkLogs.Dock = System.Windows.Forms.DockStyle.Fill;
this.listViewWorkLogs.FullRowSelect = true;
this.listViewWorkLogs.GridLines = true;
this.listViewWorkLogs.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.Nonclickable;
this.listViewWorkLogs.HideSelection = false;
this.listViewWorkLogs.ImeMode = System.Windows.Forms.ImeMode.NoControl;
this.listViewWorkLogs.LabelWrap = false;
this.listViewWorkLogs.Location = new System.Drawing.Point(3, 21);
this.listViewWorkLogs.MultiSelect = false;
this.listViewWorkLogs.Name = "listViewWorkLogs";
this.listViewWorkLogs.Size = new System.Drawing.Size(758, 565);
this.listViewWorkLogs.TabIndex = 2;
this.listViewWorkLogs.UseCompatibleStateImageBehavior = false;
this.listViewWorkLogs.View = System.Windows.Forms.View.Details;
this.listViewWorkLogs.ItemCheck += new System.Windows.Forms.ItemCheckEventHandler(this.listViewWorkLogs_ItemCheck);
this.listViewWorkLogs.SelectedIndexChanged += new System.EventHandler(this.listViewWorkLogs_SelectedIndexChanged);
//
// columnHeader1
//
this.columnHeader1.Text = "序号";
this.columnHeader1.Width = 50;
//
// columnHeader2
//
this.columnHeader2.Text = "文件名";
this.columnHeader2.Width = 580;
//
// groupBox2
//
this.groupBox2.Controls.Add(this.lblResult);
this.groupBox2.Controls.Add(this.btnOpenDir);
this.groupBox2.Location = new System.Drawing.Point(15, 644);
this.groupBox2.Name = "groupBox2";
this.groupBox2.Size = new System.Drawing.Size(809, 68);
this.groupBox2.TabIndex = 5;
this.groupBox2.TabStop = false;
this.groupBox2.Text = "合并结果";
//
// lblResult
//
this.lblResult.AutoSize = true;
this.lblResult.Location = new System.Drawing.Point(17, 34);
this.lblResult.Name = "lblResult";
this.lblResult.Size = new System.Drawing.Size(55, 15);
this.lblResult.TabIndex = 0;
this.lblResult.Text = "label2";
//
// btnOpenDir
//
this.btnOpenDir.Location = new System.Drawing.Point(709, 24);
this.btnOpenDir.Name = "btnOpenDir";
this.btnOpenDir.Size = new System.Drawing.Size(94, 32);
this.btnOpenDir.TabIndex = 3;
this.btnOpenDir.Text = "查看文件";
this.btnOpenDir.UseVisualStyleBackColor = true;
this.btnOpenDir.Click += new System.EventHandler(this.btnOpenDir_Click);
//
// btnMoveUp
//
this.btnMoveUp.Location = new System.Drawing.Point(785, 141);
this.btnMoveUp.Name = "btnMoveUp";
this.btnMoveUp.Size = new System.Drawing.Size(33, 42);
this.btnMoveUp.TabIndex = 6;
this.btnMoveUp.Text = "上移";
this.btnMoveUp.UseVisualStyleBackColor = true;
this.btnMoveUp.Click += new System.EventHandler(this.btnMoveUp_Click);
//
// btnMoveDown
//
this.btnMoveDown.Location = new System.Drawing.Point(785, 224);
this.btnMoveDown.Name = "btnMoveDown";
this.btnMoveDown.Size = new System.Drawing.Size(33, 42);
this.btnMoveDown.TabIndex = 6;
this.btnMoveDown.Text = "下移";
this.btnMoveDown.UseVisualStyleBackColor = true;
this.btnMoveDown.Click += new System.EventHandler(this.btnMoveDown_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 15F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(836, 724);
this.Controls.Add(this.btnMoveDown);
this.Controls.Add(this.btnMoveUp);
this.Controls.Add(this.groupBox2);
this.Controls.Add(this.groupBox1);
this.Controls.Add(this.btnMergePDF);
this.Controls.Add(this.bntSelectDir);
this.Controls.Add(this.button1);
this.Controls.Add(this.txtFileDir);
this.Controls.Add(this.label1);
this.Name = "Form1";
this.Text = "PDF文件合并";
this.groupBox1.ResumeLayout(false);
this.groupBox2.ResumeLayout(false);
this.groupBox2.PerformLayout();
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.Label label1;
private System.Windows.Forms.TextBox txtFileDir;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button bntSelectDir;
private System.Windows.Forms.Button btnMergePDF;
private System.Windows.Forms.GroupBox groupBox1;
private System.Windows.Forms.ListView listViewWorkLogs;
private System.Windows.Forms.ColumnHeader columnHeader1;
private System.Windows.Forms.ColumnHeader columnHeader2;
private System.Windows.Forms.GroupBox groupBox2;
private System.Windows.Forms.Label lblResult;
private System.Windows.Forms.Button btnOpenDir;
private System.Windows.Forms.Button btnMoveUp;
private System.Windows.Forms.Button btnMoveDown;
}
}到此这篇关于基于C#实现PDF文件合并工具的文章就介绍到这了,更多相关C# PDF文件合并内容请搜索China编程(www.chinasem.cn)以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程China编程(www.chinasem.cn)！
这篇关于基于C#实现PDF文件合并工具的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
