应用C#实现图片转PDF与Excel转PDF

应用c#进行转换的时候，需要iTextSharp函数包，百度网盘链接，点击获取！提取码：vddj

自定义图片转PDF函数：

 1     public void PicToPdf(string path1, string path2,string path3)
 2         {
 3             iTextSharp.text.Document document = new iTextSharp.text.Document(iTextSharp.text.PageSize.A4, 25, 25, 25, 25);
 4             try
 5             {
 6                 List<string> files = new List<string>();
 7                 foreach (string zz in Directory.GetFileSystemEntries(path1))
 8                 {
 9                     files.Add(zz);
10                 }
11                 //this.Close();path3
12                 string tt1 = path2 + path3;
13                 iTextSharp.text.pdf.PdfWriter.GetInstance(document, new FileStream(tt1, FileMode.Create, FileAccess.ReadWrite));
14                 document.Open();
15                 iTextSharp.text.Image image;
16                 for (int i = 0; i < files.Count; i++)
17                 {
18                     if (String.IsNullOrEmpty(files[i])) break;
19                     image = iTextSharp.text.Image.GetInstance(files[i]);
20                     if (image.Height > iTextSharp.text.PageSize.A4.Height - 25)
21                     {
22                         image.ScaleToFit(iTextSharp.text.PageSize.A4.Width - 25, iTextSharp.text.PageSize.A4.Height - 25);
23                     }
24                     else if (image.Width > iTextSharp.text.PageSize.A4.Width - 25)
25                     {
26                         image.ScaleToFit(iTextSharp.text.PageSize.A4.Width - 25, iTextSharp.text.PageSize.A4.Height - 25);
27                     }
28                     image.Alignment = iTextSharp.text.Image.ALIGN_MIDDLE;
29                     document.NewPage();
30                     document.Add(image);
31                 }
32             }
33             catch (Exception ex)
34             {
35                 MessageBox.Show("转换失败，原因：" + ex.Message);
36                 return;
37             }
38             document.Close();  
39         }

其中path1为图片路径path2、path3为自定义的PDF保存路径，自行修改！

自定义EXCE转PDF函数：

 1        public void ExcelToPdf(string path1, string path2)
 2         {
 3             Microsoft.Office.Interop.Excel.Application lobjExcelApp = null;
 4             Microsoft.Office.Interop.Excel.Workbooks lobjExcelWorkBooks = null;
 5             Microsoft.Office.Interop.Excel.Workbook lobjExcelWorkBook = null;
 6             string lstrTemp = string.Empty;
 7             object lobjMissing = System.Reflection.Missing.Value;
 8             lobjExcelApp = new Microsoft.Office.Interop.Excel.Application();
 9             lobjExcelApp.Visible = false;
10             lobjExcelWorkBooks = lobjExcelApp.Workbooks;
11             lobjExcelWorkBook = lobjExcelWorkBooks.Open(path1, lobjMissing, false, lobjMissing, lobjMissing, lobjMissing, true, lobjMissing, lobjMissing, lobjMissing, lobjMissing, lobjMissing, false, lobjMissing, lobjMissing);
12             //Microsoft.Office.Interop.Excel 12.0.0.0函数               
13             lstrTemp = System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + ".xls" + (lobjExcelWorkBook.HasVBProject ? 'm' : 'x');
14             //lstrTemp = System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + ".xls";         
15             lobjExcelWorkBook.SaveAs(lstrTemp, Microsoft.Office.Interop.Excel.XlFileFormat.xlExcel4Workbook, Type.Missing, Type.Missing, Type.Missing, false, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, false, Type.Missing, Type.Missing, Type.Missing);     lobjExcelWorkBook.ExportAsFixedFormat(Microsoft.Office.Interop.Excel.XlFixedFormatType.xlTypePDF, path2, Microsoft.Office.Interop.Excel.XlFixedFormatQuality.xlQualityStandard, Type.Missing, false, Type.Missing, Type.Missing, false, Type.Missing);
16             lobjExcelWorkBooks.Close();
17             lobjExcelApp.Quit();
18         }

其中path1为EXCEL路径path2为自定义的PDF保存路径，自行修改！