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PDF 合并和保护工具

Sunasara Imdadhusen
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4.97/5 (12投票s)

2012年10月4日

CPOL

4分钟阅读

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42324

PDF MERGER and PROTECTOR 是最佳的 PDF 合并软件，它以快速而强大的方式合并（Merge）PDF 文件，并提供密码保护，同时您还可以使用任何类型的图片或文本印章。使用此实用程序，您无需安装 Adobe Acrobat。听起来很棒？？？

Screen Demo

密码保护的 PDF内容受到文本保护内容受到图片保护

简介

PDF Merger and Protector 是一款免费工具，用于合并和保护您的 PDF 文件，包括密码和印章功能。该工具具有以下多项功能：

  • 将任意数量的 PDF 文件合并成一个 PDF 文件。
  • 为所有页面重新生成页码。
  • 无需安装“Adobe Acrobat and Reader”。
  • 使用简单，外观和感觉专业。
  • 您可以为内容设置密码，以防止未经授权的打开、复制或打印。
  • 您可以使用文本或任何图片来保护您的内容，使其免受版权、商标、许可或水印的侵害。

背景  

此工具可用于任何领域或场景，例如：

  • 如果您是读者，可以按作者管理所有教程。
  • 如果您是员工，可以将每月的工资单按财政年度保存。
  • 如果您是付费者，可以按类别记录手机账单、电费账单。
  • 用于归档或统一目的。
  •  通过电子邮件发送文件，而不是发送一堆文件。
  •  打印。
  • 按时间顺序查看。

使用代码

此应用程序是借助 iTextSharp 库开发的。我在 软件开发公司 网站上撰写了完整的 使用指南 和 技术使用指南。

在此，我将通过代码和流程为您提供 PDF Merger and Protector 的一般性介绍。在开始阅读本文之前，您应该了解以下内容。

  • 先决条件：
  • 变量声明 

    //this is the notify file merging process at specified interval
private NotifyProgress m_clsNotifyDelegate;
//Declaration of thread
private Thread m_clsThread;
//Provides a way to synchronously or asynchronously execute a delegate
private ISynchronizeInvoke m_clsSynchronizingObject;
//this is the definition of the progress delegate - it defines the "signature" of the routine...
//NotifyProgress has four arguments
TotalFiles: total number of files to merge
ProcessFileIndex: currently merging file index
TotalPages: total number of pages of all files
PageIndex: currently merging file page index.
public delegate void NotifyProgress(int TotalFiles, int ProcessFileIndex, int TotalPages, int PageIndex);

  • 属性
    • //Gets or Sets the Destination File Path. Where save generated file.
public string DestinationFile { get;set; }
//Processing or current File Index,File Name and Total Pages and Process Page Index.
public int ProcessFileIndex { get;set; }
public string ProcessFileName { get;set; }
public int ProcessFilePages { get;set; }
public int ProcessFilePageIndex { get;set; }
//Total Files and Total Pages to be merged in a single file (pdf).
public int TotalFiles { get;set; }
public int TotalPages { get;set; }
public int PageIndex { get;set; }
  • 构造函数 
    • 您可以使用默认值创建 PDFMerger 的对象，例如 Synchronize Object 和 Notify Progress 参数。
    此类的对象需要传递两个参数：“同步对象”，它告诉类“通知委托”在哪个上下文中运行。

    public PDFManager(ISynchronizeInvoke SynchronizingObject, NotifyProgress NotifyDelegate)
{
m_clsSynchronizingObject = SynchronizingObject;
m_clsNotifyDelegate = NotifyDelegate;
}
  • 公共方法
    • AddFile 
      • 此方法会将文件列表添加到文件列表中。文件列表包含所有将被合并成单个文件的文件。
      public void AddFile(string pathnname)
{
fileList.Add(pathnname);
}
       
    • Execute 
      • Execute 方法会将所有文件合并成一个（pdf）文件。 
      public void Execute()
 {
//Method will execute in background thread, it will continuous call “MeregDocs” method to update or notify  to the users screen.
         m_clsThread = new System.Threading.Thread(MergeDocs);
         m_clsThread.Name = "PDF Mereger Background Thread";
         m_clsThread.IsBackground = true;
         m_clsThread.Start();
}
       
  • 私有方法
    • MergeDocs 
      • 此方法是整个合并过程的核心。它会将所有文件合并成一个，并将生成的文件保存在目标位置。此方法非常直观，因此无需在此赘述。  
      private void MergeDocs()
    {
string value = "";
setting = new SettingManager(Path.Combine(Application.StartupPath, "settings.ini"));
//------------------------------------------------------------------------------------
//Step 1: Create a Docuement-Object
//------------------------------------------------------------------------------------
Document document = new Document();
try
{
//------------------------------------------------------------------------------------
//Step 2: we create a writer that listens to the document
//------------------------------------------------------------------------------------
PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(destinationfile, FileMode.Create));
//------------------------------------------------------------------------------------
//Step 3: Set Password Protection if you are set for it
//------------------------------------------------------------------------------------
SetPasswordProtection(writer);
 
//------------------------------------------------------------------------------------
//Step 4: Open the document
//------------------------------------------------------------------------------------
document.Open();
PdfContentByte cb = writer.DirectContent;
PdfImportedPage page;
PdfReader reader;
int rotation = 0;
 
ProcessFileIndex = 0;
TotalFiles = fileList.Count;
TotalPages = 0;
PageIndex = 0;
foreach (string filename in fileList)
{
reader = new PdfReader(filename);
//Gets the number of pages to process
TotalPages += reader.NumberOfPages;
}
 
//Loops for each file that has been listed
foreach (string filename in fileList)
{
//Create a reader for the document
reader = new PdfReader(filename);
ProcessFileIndex++;
ProcessFileName = filename;
//Gets the number of pages to process
ProcessFilePages = reader.NumberOfPages;
ProcessFilePageIndex = 0;
 
while (ProcessFilePageIndex < ProcessFilePages)
{
ProcessFilePageIndex++;
PageIndex++;
 
NotifyUI(TotalFiles, ProcessFileIndex, TotalPages, PageIndex);
Thread.Sleep(1);
 
document.SetPageSize(reader.GetPageSizeWithRotation(1));
document.NewPage();
//Insert to Destination on the first page
if (ProcessFilePageIndex == 1)
{
Chunk fileRef = new Chunk(" ");
fileRef.SetLocalDestination(filename);
document.Add(fileRef);
}
 
page = writer.GetImportedPage(reader, ProcessFilePageIndex);
rotation = reader.GetPageRotation(ProcessFilePageIndex);
if (rotation == 90 || rotation == 270)
cb.AddTemplate(page, 0, -1f, 1f, 0, 0, reader.GetPageSizeWithRotation(ProcessFilePageIndex).Height);
else
cb.AddTemplate(page, 1f, 0, 0, 1f, 0, 0);
 
//------------------------------------------------------------------------------------
//Step 4: Set Page Number and Formatting if you are set for it
//------------------------------------------------------------------------------------
value = setting.Read("Page Number and Formatting", "AollowPageFormatting");
if (!string.IsNullOrEmpty(value) && Convert.ToBoolean(value) == true)
{
// we tell the ContentByte we're ready to draw text
cb.BeginText();
// we draw some text on a perticular position
BaseFont bf = BaseFont.CreateFont(BaseFont.TIMES_ROMAN, BaseFont.CP1252, false);
cb.SetFontAndSize(bf, 12);
 
value = setting.Read("Page Number and Formatting", "PageText");
string PageNumberText = "";
if (!string.IsNullOrEmpty(value)) PageNumberText = value;
 
string isPageNumber = setting.Read("Page Number and Formatting", "PageNumber");
string isTotalPageNumber = setting.Read("Page Number and Formatting", "TotalPage");
if (!string.IsNullOrEmpty(isPageNumber) && Convert.ToBoolean(isPageNumber) == true && !string.IsNullOrEmpty(isTotalPageNumber) && Convert.ToBoolean(isTotalPageNumber) == true)
{
PageNumberText = string.Format("{0} {1} of {2}", PageNumberText, PageIndex, TotalPages);
}
else if (!string.IsNullOrEmpty(isPageNumber) && Convert.ToBoolean(isPageNumber) == true)
{
PageNumberText = string.Format("{0} {1}", PageNumberText, PageIndex);
}
else if (!string.IsNullOrEmpty(isTotalPageNumber) && Convert.ToBoolean(isTotalPageNumber) == true)
{
PageNumberText = string.Format("{0} {1}", PageNumberText, TotalPages);
}
 
Coordinates Coordinates = GetPageAlignment(PageNumberText, document);
cb.SetTextMatrix(Coordinates.X, Coordinates.Y);
cb.ShowText(PageNumberText);
// we tell the contentByte, we've finished drawing text
cb.EndText();
}
}
}
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
//------------------------------------------------------------------------------------
//Step 5: Close the merged pdf document
//------------------------------------------------------------------------------------
document.Close();
 
//------------------------------------------------------------------------------------
//Step 6: Applying watermark Image of Text on PDF
//------------------------------------------------------------------------------------
bool isWatermarkEnabled = Convert.ToBoolean(setting.Read("Watermark Image or Write Text", "IsWatermarkEnabled"));
if (isWatermarkEnabled)
{
bool isImagePath = Convert.ToBoolean(setting.Read("Watermark Image or Write Text", "IsImagePath"));
string filePath = setting.Read("Merege PDF Location", "PDFLocation");
if (string.IsNullOrEmpty(filePath) || !Directory.Exists(filePath))
{
string newFilePath = Path.Combine(Path.GetDirectoryName(Application.ExecutablePath), "MergedFiles");
setting.Write("Merege PDF Location", "PDFLocation", newFilePath);
MessageBox.Show(string.Format("Directory does not exists at {0}\n Default path is {1}", filePath, newFilePath), "Directory Not Found", MessageBoxButtons.OK);
filePath = newFilePath;
}
//Step 6.1: Applying watermark Image if image option was selected
filePath = Path.Combine(filePath, DateTime.Now.Ticks + ".pdf");
if (isImagePath)
{
string imagePath = setting.Read("Watermark Image or Write Text", "ImagePath");
if (imagePath != null && imagePath != "")
{
if (File.Exists(imagePath))
{
AddWatermarkImage(DestinationFile, filePath, imagePath);
File.Delete(DestinationFile);
File.Copy(filePath, DestinationFile);
File.Delete(filePath);
}
else
{
MessageBox.Show(string.Format("File could not be found at {0}", imagePath), "File Not Found", MessageBoxButtons.OK);
}
}
}
else
{
//Step 6.2: Applying watermark text if text option was selected
string watermarkText = setting.Read("Watermark Image or Write Text", "WatermarkText");
string watermarkFont = setting.Read("Watermark Image or Write Text", "WatermarkFont");
string watermarkColor = setting.Read("Watermark Image or Write Text", "WatermarkColor");
 
iTextSharp.text.pdf.BaseFont font = ConvertStringToFont(watermarkFont);
BaseColor color = ConvertStringToColor(watermarkColor);
 
AddWatermarkText(sourceFile: DestinationFile, outputFile: filePath, watermarkText: watermarkText, watermarkFont: font, watermarkFontColor: color);
File.Delete(DestinationFile);
File.Copy(filePath, DestinationFile);
File.Delete(filePath);
}
}
//Step 7: Destroy PDF Merger object from the memory and release all the objects.
m_clsNotifyDelegate = null;
m_clsThread = null;
m_clsSynchronizingObject = null;
fileList.Clear();
}
}
    • SetPasswordProtection 
      • 此方法将使用用户名和密码来保护您的文档，没有用户名和密码，没有人可以打开它。 
      private PdfWriter SetPasswordProtection(PdfWriter writer)
{
try
{
string value = setting.Read("File Protection", "AllowFileProtection");
if (!string.IsNullOrEmpty(value) && Convert.ToBoolean(value) == true)
{
string password = setting.Read("File Protection", "Password");
string ownerPassword = "imdadhusen";
 
if (!string.IsNullOrEmpty(password))
{
int Permission = 0;
bool Strength = false;
value = setting.Read("File Protection", "AllowCopy");
if (!string.IsNullOrEmpty(value)) Permission = 16;
value = setting.Read("File Protection", "AllowPrinting");
if (!string.IsNullOrEmpty(value)) Permission += 2052;
 
value = setting.Read("File Protection", "EncryptionStrength");
if (!string.IsNullOrEmpty(value) && value == "strength128bits") Strength = true;
 
writer.SetEncryption(Strength, password, ownerPassword, Permission);
}
}
 
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return writer;
}
    • ConvertStringToFont 
      • 此方法将根据您的选择设置水印文本的字体。
      private BaseFont ConvertStringToFont(string fontName)
   {
iTextSharp.text.pdf.BaseFont font = null;
try
{
 
if (string.IsNullOrEmpty(fontName) == false)
{
switch (fontName.ToUpper())
{
case "COURIER":
case "HELVETICA":
font = BaseFont.CreateFont(CultureInfo.CurrentCulture.TextInfo.ToTitleCase(fontName), BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
break;
case "TIMES":
font = BaseFont.CreateFont(BaseFont.TIMES_BOLD, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
break;
}
}
 
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return font;
}
    • ConvertStringToColor 
      • 此方法将设置您水印文本的字体颜色。
      private BaseColor ConvertStringToColor(string colorName)
BaseColor color = null;
if (string.IsNullOrEmpty(colorName.ToLower()) == false)
{
   Color c = Color.FromName(colorName.ToLower());
   color = new BaseColor(c.R, c.G, c.B);
}
return color;
}
    • NotifyUI 
      • 此方法决定如何与调用线程进行交互，无论是通过委托还是事件。它将在用户屏幕上更新合并过程的状态。
      private void NotifyUI(int TotalFiles, int ProcessFileIndex, int TotalPages, int PageIndex)
       {
try
{
object[] args = { TotalFiles, ProcessFileIndex, TotalPages, PageIndex };
//call the delegate, specifying the context in which to run...
m_clsSynchronizingObject.Invoke(m_clsNotifyDelegate, args);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
    • GetPageAlignment
      • 此方法将在特定位置或对齐方式（顶部、中部、底部）或（左侧、居中、右侧）显示自定义页码。
      private Coordinates GetPageAlignment(string PageNumberText, Document document)
   {
Coordinates Coordinates = new PDFLibrary.Coordinates();
try
{
frmSettings frmsetting = new frmSettings();
PageNumberSize PageNumberSize = frmsetting.GetPageNumberSize(PageNumberText);
 
float TMargin = document.TopMargin;
float RMargin = document.RightMargin;
float BMargin = document.BottomMargin;
float LMargin = document.LeftMargin;
 
setting = new SettingManager(Path.Combine(Application.StartupPath, "settings.ini"));
iTextSharp.text.Rectangle pageSize = document.PageSize;
 
string value = setting.Read("Page Number and Formatting", "VerticalAlignment");
switch (value)
{
case "top":
Coordinates.Y = pageSize.Height - (PageNumberSize.Height + TMargin);
break;
case "middle":
Coordinates.Y = (pageSize.Height - (PageNumberSize.Height + TMargin)) / 2;
break;
case "bottom":
Coordinates.Y = BMargin - PageNumberSize.Height;
break;
}
value = setting.Read("Page Number and Formatting", "HorizontalAlignment");
switch (value)
{
case "left":
Coordinates.X = LMargin;
break;
case "center":
Coordinates.X = (pageSize.Width - (PageNumberSize.Width + RMargin)) / 2;
break;
case "right":
Coordinates.X = pageSize.Width - (PageNumberSize.Width + RMargin);
break;
}
 
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return Coordinates;
}
    • AddWatermarkImage
      • 使用此方法，您可以在每页上添加水印图像。这样可以保护您的数据免遭盗窃。
      private void AddWatermarkImage(string sourceFile, string outputFile, string watermarkImage)
       {
try
{
using (Stream inputPdfStream = new FileStream(sourceFile, FileMode.Open, FileAccess.Read, FileShare.Read))
using (Stream inputImageStream = new FileStream(watermarkImage, FileMode.Open, FileAccess.Read, FileShare.Read))
using (Stream outputPdfStream = new FileStream(outputFile, FileMode.Create, FileAccess.Write, FileShare.None))
{
PdfReader reader;
string userPassword = "imdadhusen"; //Imdadhusen is a master Password but you can unlock with User Password also.
string ownerPassword = "imdadhusen";
try
{
reader = new PdfReader(sourceFile);
}
catch (BadPasswordException)
{
 
System.Text.Encoding enc = System.Text.Encoding.ASCII;
Byte[] myByteArray = enc.GetBytes(userPassword);
reader = new PdfReader(sourceFile, myByteArray);
}
var stamper = new PdfStamper(reader, outputPdfStream);
 
string value = setting.Read("File Protection", "AllowFileProtection");
if (!string.IsNullOrEmpty(value) && Convert.ToBoolean(value) == true)
{
userPassword = setting.Read("File Protection", "Password");
if (!string.IsNullOrEmpty(userPassword))
{
int Permission = 0;
bool Strength = false;
value = setting.Read("File Protection", "AllowCopy");
if (!string.IsNullOrEmpty(value)) Permission = 16;
value = setting.Read("File Protection", "AllowPrinting");
if (!string.IsNullOrEmpty(value)) Permission += 2052;
 
value = setting.Read("File Protection", "EncryptionStrength");
if (!string.IsNullOrEmpty(value) && value == "strength128bits") Strength = true;
 
stamper.SetEncryption(Strength, userPassword, ownerPassword, Permission);
}
}
 
iTextSharp.text.Rectangle rect = null;
float X = 0;
float Y = 0;
int pageCount = 0;
PdfContentByte underContent = null;
 
rect = reader.GetPageSizeWithRotation(1);
pageCount = reader.NumberOfPages;
reader.Close();
 
iTextSharp.text.Image img = iTextSharp.text.Image.GetInstance(watermarkImage);
if (img.Width > rect.Width || img.Height > rect.Height)
{
img.ScaleToFit(rect.Width, rect.Height);
X = (rect.Width - img.ScaledWidth) / 2;
Y = (rect.Height - img.ScaledHeight) / 2;
}
else
{
X = (rect.Width - img.Width) / 2;
Y = (rect.Height - img.Height) / 2;
}
img.SetAbsolutePosition(X, Y);
 
for (int i = 1; i <= pageCount; i++)
{
underContent = stamper.GetUnderContent(i);
underContent.AddImage(img);
}
 
stamper.Close();
inputPdfStream.Close();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
    • AddWatermarkText
      • 使用此方法，您可以在每页上添加水印文本。这样可以保护您的数据免遭盗窃。

      private void AddWatermarkText(string sourceFile, string outputFile, string watermarkText, iTextSharp.text.pdf.BaseFont watermarkFont = null, float watermarkFontSize = 48, BaseColor watermarkFontColor = null, float watermarkFontOpacity = 0.3f, float watermarkRotation = 45f)
{
using (Stream inputPdfStream = new FileStream(sourceFile, FileMode.Open, FileAccess.Read, FileShare.Read))
using (Stream outputPdfStream = new FileStream(outputFile, FileMode.Create, FileAccess.Write, FileShare.None))
{
PdfReader reader;
string userPassword = "imdadhusen"; //Imdadhusen is a master Password but you can unlock with User Password also.
string ownerPassword = "imdadhusen";
try
{
reader = new PdfReader(sourceFile);
}
catch (BadPasswordException)
{
System.Text.Encoding enc = System.Text.Encoding.ASCII;
Byte[] myByteArray = enc.GetBytes(userPassword);
reader = new PdfReader(sourceFile, myByteArray);
}
var stamper = new PdfStamper(reader, outputPdfStream);
 
string value = setting.Read("File Protection", "AllowFileProtection");
if (!string.IsNullOrEmpty(value) && Convert.ToBoolean(value) == true)
{
userPassword = setting.Read("File Protection", "Password");
if (!string.IsNullOrEmpty(userPassword))
{
int Permission = 0;
bool Strength = false;
value = setting.Read("File Protection", "AllowCopy");
if (!string.IsNullOrEmpty(value)) Permission = 16;
value = setting.Read("File Protection", "AllowPrinting");
if (!string.IsNullOrEmpty(value)) Permission += 2052;
 
value = setting.Read("File Protection", "EncryptionStrength");
if (!string.IsNullOrEmpty(value) && value == "strength128bits") Strength = true;
 
stamper.SetEncryption(Strength, userPassword, ownerPassword, Permission);
}
}
iTextSharp.text.Rectangle rect = null;
PdfGState gstate = null;
int pageCount = 0;
PdfContentByte underContent = null;
rect = reader.GetPageSizeWithRotation(1);
if (watermarkFont == null) watermarkFont = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
if (watermarkFontColor == null) watermarkFontColor = BaseColor.BLUE;
 
gstate = new PdfGState();
gstate.FillOpacity = watermarkFontOpacity;
gstate.StrokeOpacity = watermarkFontOpacity;
pageCount = reader.NumberOfPages;
for (int i = 1; i <= pageCount; i++)
{
underContent = stamper.GetUnderContent(i);
var _with1 = underContent;
_with1.SaveState();
_with1.SetGState(gstate);
_with1.SetColorFill(watermarkFontColor);
_with1.BeginText();
_with1.SetFontAndSize(watermarkFont, watermarkFontSize);
_with1.SetTextMatrix(30, 30);
_with1.ShowTextAligned(Element.ALIGN_CENTER, watermarkText, rect.Width / 2, rect.Height / 2, watermarkRotation);
_with1.EndText();
_with1.RestoreState();
}
stamper.Close();
inputPdfStream.Close();
}
}
    • 类 
      • 此类只有两个属性，可以保存用于显示页码的 X 和 Y 坐标信息。
      public class Coordinates
{
public float X { get; set; }
public float Y { get; set; }
}
  • PDF Merger 的用法 
    • PDF Merger 是一个命令行实用程序，它会将多个文件（.pdf）合并成一个文件（.pdf）。使用此实用程序，您可以保护您的文档（.pdf）具有以下多项功能。
    • 用法 
      • 密码保护。
      • 防止复制和打印。
      • 自定义页码和对齐方式。
      • 水印内容保护。
        • Image
        • 文本
        • 向您的项目添加命名空间。
      using PDFMerger;
    • 声明 PDF Merger 对象 
      • PDFLibrary.PDFManager merge;
    • 在构造函数中分配 Isynchronize 对象和 Notify 委托对象。

      • merge = new PDFLibrary.PDFManager(this, new PDFLibrary.PDFManager.NotifyProgress(DelegateProgress));
    • 创建委托进度函数，以便在特定时间间隔通知 UI。
      • 此方法包含四个参数：TotalFiles（包含（pdf）文件的总数），ProcessFileIndex（包含当前正在处理的文件编号），TotalPages（所有（pdf）文件的总页数），以及 PageIndex（当前正在处理的文件的页码）。
      private void DelegateProgress(int TotalFiles, int ProcessFileIndex, int TotalPages, int PageIndex)
{
try
{
if (merge != null && merge.TotalPages > 0)
{
this.Invoke((MethodInvoker)delegate
{
int pagepercent = merge.ProcessFilePageIndex * 100 / merge.ProcessFilePages;
TextProgressBar pb = (TextProgressBar)lstFiles.GetEmbeddedControl(3, merge.ProcessFileIndex - 1);
pb.Text = string.Format("{0:00} %", pagepercent);
pb.Value = pagepercent;
int percent = merge.PageIndex * 100 / merge.TotalPages;
 
ProgressStripItem statusProgrss = (ProgressStripItem)tsStatus.Items[1];
statusProgrss.TextProgressBar.Value = percent;
statusProgrss.TextProgressBar.Text = string.Format("{0:00}%", percent);
DisplayStatusMessage(string.Format("File Name:{0}, File {1:00} of {2:00}, Page {3:00} of {4:00}", Path.GetFileName(merge.ProcessFileName), merge.ProcessFileIndex, merge.TotalFiles, merge.ProcessFilePageIndex, merge.ProcessFilePages));
if (percent >= 100)
{
DisplayStatusMessage(string.Format("File merged successfully at {0}", merge.DestinationFile));
for (int i = 0; i < lstFiles.Items.Count; i++)
{
lstFiles.RemoveEmbeddedControl(lstFiles.GetEmbeddedControl(3, i));
}
ClearList();
merge = null;
}
});
}
else
{
((ProgressStripItem)tsStatus.Items[1]).TextProgressBar.Text = string.Format("{0:00}%", 0);
DisplayStatusMessage(string.Format("File {0:00} of {1:00}, Page {2:00} of {3:00}", 0, 0, 0, 0));
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
    • 设置目标文件夹路径，用于存储生成或合并的文件（.pdf）。如果目标路径不存在，它将自动创建。
      • merge.DestinationFile = “D:/MergedFiles/”;
    • 执行合并过程。
      • merge.Execute();
  • 设置
    • 在上面的代码中，您将在多个方法中获得 SettingManager 对象。这是一个（.ini）类，用于存储用户设置信息，例如：
    • 文件保护设置
      • 加密强度
      • 密码
      • 允许复制
      • 允许打印
    • 页码和格式 
      • 垂直对齐
      • 水平对齐
      • 页码格式 
    • 水印图像或文本
      • 水印图像路径
      • 水印文本值
      • 字体名称
      • 字体颜色
    • 合并后的 PDF 位置 
      • 使用以下代码，您可以获取和设置（.ini）文件中的全局设置。
    • 声明
      • SettingManager setting = new SettingManager(Path.Combine(Application.StartupPath, "settings.ini"));
    • 读取设置
      • string value = setting.Read("Page Number and Formatting", "AollowPageFormatting");
    • 保存设置
      • setting.Write("File Protection", "Password", “imdadhusen”);

    评论和反馈

    创建和维护 PDFMerger 库需要（并且仍然需要）大量的工作和努力。

    PDFMerger 是免费的，我希望您觉得它有用。如果您想支持未来的开发和新产品功能，请通过评论、邮件、消息或评分留下您宝贵的评论、反馈、建议或赞赏。
    这些努力用于覆盖和提高产品效率。
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