写pdf文件

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using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms;       using System.Diagnostics;   using PdfSharp; using PdfSharp.Pdf; using PdfSharp.Drawing;   namespace imageToPDF {     public partial class FrmPDF : Form     {         public FrmPDF()         {             InitializeComponent();         }           private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)         {             Close();         }           private void FrmPDF_Shown(object sender, EventArgs e)         {             this.listView1.Columns[0].Width = this.listView1.Width - listView1.Columns[1].Width - listView1.Columns[2].Width;         }           private void button4_Click(object sender, EventArgs e)         {               PdfDocument doc = new PdfDocument();               for (int i = 1; i < 13; i++)             {                 PdfPage pPdfPage = new PdfPage();                   doc.Pages.Add(pPdfPage);                   string source = @"E:\1\";                 if (i < 10)                 {                     source = source + "00" + i.ToString() + ".jpg";                 }                 else                 {                     source = source + "0" + i.ToString() + ".jpg";                 }                 XGraphics xgr = XGraphics.FromPdfPage(doc.Pages[i - 1]);                 XImage img = XImage.FromFile(source);                 xgr.DrawImage(img, 0, 0);             }               string destinaton = @"E:\1\1.pdf";             doc.Save(destinaton);             doc.Close();         }           //获得一个文件         private void 添加图片文件ToolStripMenuItem_Click(object sender, EventArgs e)         {             if (openFileDialog1.ShowDialog() == DialogResult.OK)             {                 string[] FileList = openFileDialog1.FileNames;                 for (int i = 0; i < FileList.Length; i++)                 {                     string FileName = FileList[i];                     ListViewItem pListViewItem = listView1.Items.Add(FileName);                     System.IO.FileInfo file = new System.IO.FileInfo(FileName);                       pListViewItem.SubItems.Add((file.Length / 1024).ToString("f0") + "KB");//文件大小                     pListViewItem.SubItems.Add(file.LastWriteTime.ToString());///最后修改时间                       }             }         }     } }