继续，这节我们实现了，c#语言对PDF文件进行分割、把PDF转png图片和PDF打印和预览三项功能。

8. 分割功能

单击分割按钮，或者在导航图片上选择右键，选择分割弹出插入设置对话框，点击确定即可完成插入功能。功能如下：

A.分割设置页面

先看一下分割页面，如下：

设计代码：
namespace MyPdf
{partial class SpliteForm{/// <summary>/// Required designer variable./// </summary>private System.ComponentModel.IContainer components = null;/// <summary>/// Clean up any resources being used./// </summary>/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows Form Designer generated code/// <summary>/// Required method for Designer support - do not modify/// the contents of this method with the code editor./// </summary>private void InitializeComponent(){this.WxtsLB = new System.Windows.Forms.Label();this.Tslb = new System.Windows.Forms.Label();this.SpiteBT = new System.Windows.Forms.Button();this.CancleBT = new System.Windows.Forms.Button();this.fengeLB = new System.Windows.Forms.Label();this.SpliteTXT = new System.Windows.Forms.TextBox();this.infoLB = new System.Windows.Forms.Label();this.SelectLB = new System.Windows.Forms.Label();this.SlectFileBT = new System.Windows.Forms.Button();this.SuspendLayout();// // WxtsLB// this.WxtsLB.AutoSize = true;this.WxtsLB.Location = new System.Drawing.Point(99, 65);this.WxtsLB.Name = "WxtsLB";this.WxtsLB.Size = new System.Drawing.Size(493, 15);this.WxtsLB.TabIndex = 13;this.WxtsLB.Text = "分割可以进行如下设置：1-3,4-5;表示1至3为一个文件，4至5为一个文件";// // Tslb// this.Tslb.AutoSize = true;this.Tslb.ForeColor = System.Drawing.Color.Red;this.Tslb.Location = new System.Drawing.Point(22, 65);this.Tslb.Name = "Tslb";this.Tslb.Size = new System.Drawing.Size(82, 15);this.Tslb.TabIndex = 12;this.Tslb.Text = "温馨提示：";// // SpiteBT// this.SpiteBT.AutoSize = true;this.SpiteBT.Location = new System.Drawing.Point(620, 151);this.SpiteBT.Name = "SpiteBT";this.SpiteBT.Size = new System.Drawing.Size(77, 25);this.SpiteBT.TabIndex = 11;this.SpiteBT.Text = "确认分割";this.SpiteBT.UseVisualStyleBackColor = true;this.SpiteBT.Click += new System.EventHandler(this.SpiteBT_Click);// // CancleBT// this.CancleBT.AutoSize = true;this.CancleBT.DialogResult = System.Windows.Forms.DialogResult.Cancel;this.CancleBT.Location = new System.Drawing.Point(407, 151);this.CancleBT.Name = "CancleBT";this.CancleBT.Size = new System.Drawing.Size(77, 25);this.CancleBT.TabIndex = 10;this.CancleBT.Text = "取消删除";this.CancleBT.UseVisualStyleBackColor = true;// // fengeLB// this.fengeLB.AutoSize = true;this.fengeLB.Location = new System.Drawing.Point(149, 18);this.fengeLB.Name = "fengeLB";this.fengeLB.Size = new System.Drawing.Size(82, 15);this.fengeLB.TabIndex = 16;this.fengeLB.Text = "分割设置：";// // SpliteTXT// this.SpliteTXT.Location = new System.Drawing.Point(229, 15);this.SpliteTXT.Name = "SpliteTXT";this.SpliteTXT.Size = new System.Drawing.Size(540, 25);this.SpliteTXT.TabIndex = 17;this.SpliteTXT.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.SpliteTXT_KeyPress);// // infoLB// this.infoLB.AutoSize = true;this.infoLB.Location = new System.Drawing.Point(22, 18);this.infoLB.Name = "infoLB";this.infoLB.Size = new System.Drawing.Size(121, 15);this.infoLB.TabIndex = 18;this.infoLB.Text = "本文档共300页码";// // SelectLB// this.SelectLB.AutoSize = true;this.SelectLB.Location = new System.Drawing.Point(165, 111);this.SelectLB.Name = "SelectLB";this.SelectLB.Size = new System.Drawing.Size(0, 15);this.SelectLB.TabIndex = 19;// // SlectFileBT// this.SlectFileBT.AutoSize = true;this.SlectFileBT.Location = new System.Drawing.Point(25, 107);this.SlectFileBT.Name = "SlectFileBT";this.SlectFileBT.Size = new System.Drawing.Size(125, 25);this.SlectFileBT.TabIndex = 20;this.SlectFileBT.Text = "选择输出路径";this.SlectFileBT.UseVisualStyleBackColor = true;this.SlectFileBT.Click += new System.EventHandler(this.SlectFileBT_Click);// // SpliteForm// this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 15F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.AutoSize = true;this.ClientSize = new System.Drawing.Size(792, 218);this.Controls.Add(this.SlectFileBT);this.Controls.Add(this.SelectLB);this.Controls.Add(this.infoLB);this.Controls.Add(this.SpliteTXT);this.Controls.Add(this.fengeLB);this.Controls.Add(this.WxtsLB);this.Controls.Add(this.Tslb);this.Controls.Add(this.SpiteBT);this.Controls.Add(this.CancleBT);this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;this.Name = "SpliteForm";this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;this.Text = "PDF分割";this.Load += new System.EventHandler(this.SpliteForm_Load);this.ResumeLayout(false);this.PerformLayout();}#endregionprivate System.Windows.Forms.Label WxtsLB;private System.Windows.Forms.Label Tslb;private System.Windows.Forms.Button SpiteBT;private System.Windows.Forms.Button CancleBT;private System.Windows.Forms.Label fengeLB;private System.Windows.Forms.TextBox SpliteTXT;private System.Windows.Forms.Label infoLB;private System.Windows.Forms.Label SelectLB;private System.Windows.Forms.Button SlectFileBT;}
}
功能实现代码：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;namespace MyPdf
{public partial class SpliteForm : Form{public String SpliteOption,SavePath;private int CurrentPage,totalPage;public SpliteForm(){InitializeComponent();}public SpliteForm(int Currentpage, int Totalpage){InitializeComponent();CurrentPage = Currentpage;totalPage = Totalpage;}private void SpiteBT_Click(object sender, EventArgs e){if (SpliteTXT.Text.Trim() == ""){MessageBox.Show("分割设置不能为空！");SpliteTXT.Focus();return;}if (SelectLB.Text == ""){MessageBox.Show("请选择保存路径！");SpliteTXT.Focus();return;}SpliteOption = SpliteTXT.Text.Trim();this.DialogResult = DialogResult.OK;this.Close();}private void SpliteForm_Load(object sender, EventArgs e){infoLB.Text = "本文档共"+totalPage+"页";if (totalPage==2){SpliteTXT.Text = "1,2";return;}if (CurrentPage==1){SpliteTXT.Text = "1,2-" + totalPage.ToString();}else if (CurrentPage==totalPage){SpliteTXT.Text = "1-"+(totalPage-1).ToString()+","+totalPage.ToString();}else{SpliteTXT.Text = "1-" + CurrentPage.ToString() + ","+(CurrentPage+1).ToString()+"-" + totalPage.ToString();}if (BaseClass.GetAppConfig("last") != ""){SelectLB.Text = BaseClass.GetAppConfig("last");SavePath = BaseClass.GetAppConfig("last");}}private void SlectFileBT_Click(object sender, EventArgs e){using (var form = new FolderBrowserDialog()){if (BaseClass.GetAppConfig("last") != ""){form.SelectedPath = BaseClass.GetAppConfig("last");} if (form.ShowDialog(this) != DialogResult.OK)return;BaseClass.SetAppConfig("last", form.SelectedPath);SavePath = form.SelectedPath;SelectLB.Text = SavePath;}}private void SpliteTXT_KeyPress(object sender, KeyPressEventArgs e){if (!Char.IsNumber(e.KeyChar) && e.KeyChar != '\b' && e.KeyChar != ',' && e.KeyChar != '-'){e.Handled = true;}}}
}

B. 主页面

设计代码
// // FenGeBT_Tool// this.FenGeBT_Tool.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;this.FenGeBT_Tool.Enabled = false;this.FenGeBT_Tool.Image = ((System.Drawing.Image)(resources.GetObject("FenGeBT_Tool.Image")));this.FenGeBT_Tool.ImageTransparentColor = System.Drawing.Color.Magenta;this.FenGeBT_Tool.Name = "FenGeBT_Tool";this.FenGeBT_Tool.Size = new System.Drawing.Size(29, 25);this.FenGeBT_Tool.Text = "分割Pdf";this.FenGeBT_Tool.Click += new System.EventHandler(this.FenGeBT_Tool_Click);
功能实现代码：
 /// <summary>/// PDF分割/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void FenGeBT_Tool_Click(object sender, EventArgs e){OpenSplite();}/// <summary>/// 打开PDF分割操作界面/// </summary>private void OpenSplite(){if (GuidMenuePdf.Document.PageCount == 1){MessageBox.Show("共1页文档，不需分割。");return;}SpliteForm splitePage = new SpliteForm(currentPage + 1, GuidMenuePdf.Document.PageCount);splitePage.ShowDialog();if (splitePage.DialogResult == DialogResult.OK){string filename = Path.GetFileNameWithoutExtension(oldPdfPath);string[] commandParam = splitePage.SpliteOption.Split(',');for (int i = 0; i < commandParam.Length; i++){SplitePDF(commandParam[i], splitePage.SavePath + "\\" + filename + "_" + i + ".pdf");}MessageBox.Show("分割完成");System.Diagnostics.Process.Start("explorer.exe", splitePage.SavePath);}}

9. PDF转图片功能

A、生成图片设置页面

设计代码
using System;namespace MyPdf
{partial class ExportBitmapsForm{/// <summary>/// Required designer variable./// </summary>private System.ComponentModel.IContainer components = null;/// <summary>/// Clean up any resources being used./// </summary>/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows Form Designer generated code/// <summary>/// Required method for Designer support - do not modify/// the contents of this method with the code editor./// </summary>private void InitializeComponent(){this.label1 = new System.Windows.Forms.Label();this._dpiXTextBox = new System.Windows.Forms.TextBox();this.label2 = new System.Windows.Forms.Label();this._dpiYTextBox = new System.Windows.Forms.TextBox();this._acceptButton = new System.Windows.Forms.Button();this._cancelButton = new System.Windows.Forms.Button();this.SuspendLayout();// // label1// this.label1.AutoSize = true;this.label1.Location = new System.Drawing.Point(12, 15);this.label1.Name = "label1";this.label1.Size = new System.Drawing.Size(45, 15);this.label1.TabIndex = 0;this.label1.Text = "宽度:";// // _dpiXTextBox// this._dpiXTextBox.Location = new System.Drawing.Point(106, 12);this._dpiXTextBox.Name = "_dpiXTextBox";this._dpiXTextBox.Size = new System.Drawing.Size(240, 25);this._dpiXTextBox.TabIndex = 1;this._dpiXTextBox.Text = "96";this._dpiXTextBox.TextChanged += new System.EventHandler(this._dpiX_TextChanged);// // label2// this.label2.AutoSize = true;this.label2.Location = new System.Drawing.Point(12, 41);this.label2.Name = "label2";this.label2.Size = new System.Drawing.Size(45, 15);this.label2.TabIndex = 2;this.label2.Text = "高度:";// // _dpiYTextBox// this._dpiYTextBox.Location = new System.Drawing.Point(106, 38);this._dpiYTextBox.Name = "_dpiYTextBox";this._dpiYTextBox.Size = new System.Drawing.Size(240, 25);this._dpiYTextBox.TabIndex = 3;this._dpiYTextBox.Text = "96";this._dpiYTextBox.TextChanged += new System.EventHandler(this._dpiY_TextChanged);// // _acceptButton// this._acceptButton.AutoSize = true;this._acceptButton.Location = new System.Drawing.Point(190, 64);this._acceptButton.Name = "_acceptButton";this._acceptButton.Size = new System.Drawing.Size(75, 25);this._acceptButton.TabIndex = 4;this._acceptButton.Text = "确定";this._acceptButton.UseVisualStyleBackColor = true;this._acceptButton.Click += new System.EventHandler(this._acceptButton_Click);// // _cancelButton// this._cancelButton.AutoSize = true;this._cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;this._cancelButton.Location = new System.Drawing.Point(271, 64);this._cancelButton.Name = "_cancelButton";this._cancelButton.Size = new System.Drawing.Size(75, 25);this._cancelButton.TabIndex = 5;this._cancelButton.Text = "取消";this._cancelButton.UseVisualStyleBackColor = true;// // ExportBitmapsForm// this.AcceptButton = this._acceptButton;this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 15F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.CancelButton = this._cancelButton;this.ClientSize = new System.Drawing.Size(384, 105);this.Controls.Add(this._cancelButton);this.Controls.Add(this._acceptButton);this.Controls.Add(this._dpiYTextBox);this.Controls.Add(this.label2);this.Controls.Add(this._dpiXTextBox);this.Controls.Add(this.label1);this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;this.MaximizeBox = false;this.MinimizeBox = false;this.Name = "ExportBitmapsForm";this.ShowInTaskbar = false;this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;this.Text = "ExportBitmapsForm";this.ResumeLayout(false);this.PerformLayout();}      private System.Windows.Forms.Label label1;private System.Windows.Forms.TextBox _dpiXTextBox;private System.Windows.Forms.Label label2;private System.Windows.Forms.TextBox _dpiYTextBox;private System.Windows.Forms.Button _acceptButton;private System.Windows.Forms.Button _cancelButton;#endregion}
}
B、功能实现代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;namespace MyPdf
{public partial class ExportBitmapsForm : Form{private int _dpiX;private int _dpiY;public int DpiX{get { return _dpiX; }}public int DpiY{get { return _dpiY; }}public ExportBitmapsForm(){InitializeComponent();UpdateEnabled();}private void _acceptButton_Click(object sender, EventArgs e){DialogResult = DialogResult.OK;}private void _dpiX_TextChanged(object sender, EventArgs e){UpdateEnabled();}private void _dpiY_TextChanged(object sender, EventArgs e){UpdateEnabled();}private void UpdateEnabled(){_acceptButton.Enabled =int.TryParse(_dpiXTextBox.Text, out _dpiX) &&int.TryParse(_dpiYTextBox.Text, out _dpiY);}}
}

2.主页面设置

A、设计代码
 // PicBT_Tool// this.PicBT_Tool.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;this.PicBT_Tool.Enabled = false;this.PicBT_Tool.Image = ((System.Drawing.Image)(resources.GetObject("PicBT_Tool.Image")));this.PicBT_Tool.ImageTransparentColor = System.Drawing.Color.Magenta;this.PicBT_Tool.Name = "PicBT_Tool";this.PicBT_Tool.Size = new System.Drawing.Size(29, 25);this.PicBT_Tool.Text = "转化成图片";this.PicBT_Tool.Click += new System.EventHandler(this.PicBT_Tool_Click);//
B、 功能实现代码
/// <summary>/// PDF转图片/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void PicBT_Tool_Click(object sender, EventArgs e){int dpiX;int dpiY;using (var form = new ExportBitmapsForm()){if (form.ShowDialog() != DialogResult.OK)return;dpiX = form.DpiX;dpiY = form.DpiY;}string path;using (var form = new FolderBrowserDialog()){if (BaseClass.GetAppConfig("last") != ""){form.SelectedPath = BaseClass.GetAppConfig("last");}if (form.ShowDialog(this) != DialogResult.OK)return;path = form.SelectedPath;}var document = ViewerPdf.Document;string filename= Path.GetFileNameWithoutExtension(oldPdfPath);for (int i = 0; i < document.PageCount; i++){using (var image = document.Render(i, (int)document.PageSizes[i].Width, (int)document.PageSizes[i].Height, dpiX, dpiY, false)){image.Save(Path.Combine(path, filename+"_" + i + ".png"));}}}

10. PDF打印功能

设计代码
// PintfBT_Tool// this.PintfBT_Tool.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;this.PintfBT_Tool.Enabled = false;this.PintfBT_Tool.Image = ((System.Drawing.Image)(resources.GetObject("PintfBT_Tool.Image")));this.PintfBT_Tool.ImageTransparentColor = System.Drawing.Color.Magenta;this.PintfBT_Tool.Name = "PintfBT_Tool";this.PintfBT_Tool.Size = new System.Drawing.Size(29, 25);this.PintfBT_Tool.Text = "打印";this.PintfBT_Tool.Click += new System.EventHandler(this.PintfBT_Tool_Click);//
功能代码
 /// <summary>/// 打印PDF/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void PintfBT_Tool_Click(object sender, EventArgs e){using (var form = new PrintPreviewDialog()){form.Document = ViewerPdf.Document.CreatePrintDocument(ViewerPdf.DefaultPrintMode);form.ShowDialog(this);}}

10、保存功能

设计代码
// SaveBT_Tool// this.SaveBT_Tool.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;this.SaveBT_Tool.Enabled = false;this.SaveBT_Tool.Image = ((System.Drawing.Image)(resources.GetObject("SaveBT_Tool.Image")));this.SaveBT_Tool.ImageTransparentColor = System.Drawing.Color.Magenta;this.SaveBT_Tool.Name = "SaveBT_Tool";this.SaveBT_Tool.Size = new System.Drawing.Size(29, 25);this.SaveBT_Tool.Text = "保存pdf文件";this.SaveBT_Tool.Click += new System.EventHandler(this.SaveBT_Tool_Click);
功能实现代码
        /// <summary>/// 保存功能/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void SaveBT_Tool_Click(object sender, EventArgs e){using (var sfd = new SaveFileDialog()){sfd.Title = "请选择要保存的文件路径";//sfd.InitialDirectory = Application.StartupPath;sfd.RestoreDirectory = true;//设置保存文件的类型sfd.Filter = "Pdf文件|*.pdf";if (sfd.ShowDialog() == DialogResult.OK){ViewerPdf.Document.Save(sfd.FileName);}

ok，这样我们的PDF操作就告一段落。

源代码下载

单击下载源代码

相关连接

  1. 【c#系列】PDF进行操作-浏览、分割、合并、插入、删除（1）
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