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：

    public void PicToPdf(string path1, string path2,string path3)
        {
            iTextSharp.text.Document document = new iTextSharp.text.Document(iTextSharp.text.PageSize.A4, 25, 25, 25, 25);
            try
            {
                List<string> files = new List<string>();
                foreach (string zz in Directory.GetFileSystemEntries(path1))
                {
                    files.Add(zz);
                }
                //this.Close();path3
                string tt1 = path2 + path3;
                iTextSharp.text.pdf.PdfWriter.GetInstance(document, new FileStream(tt1, FileMode.Create, FileAccess.ReadWrite));
                document.Open();
                iTextSharp.text.Image image;
                for (int i = 0; i < files.Count; i++)
                {
                    if (String.IsNullOrEmpty(files[i])) break;
                    image = iTextSharp.text.Image.GetInstance(files[i]);
                    if (image.Height > iTextSharp.text.PageSize.A4.Height - 25)
                    {
                        image.ScaleToFit(iTextSharp.text.PageSize.A4.Width - 25, iTextSharp.text.PageSize.A4.Height - 25);
                    }
                    else if (image.Width > iTextSharp.text.PageSize.A4.Width - 25)
                    {
                        image.ScaleToFit(iTextSharp.text.PageSize.A4.Width - 25, iTextSharp.text.PageSize.A4.Height - 25);
                    }
                    image.Alignment = iTextSharp.text.Image.ALIGN_MIDDLE;
                    document.NewPage();
                    document.Add(image);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("转换失败，原因：" + ex.Message);
                return;
            }
            document.Close();  
        }

 

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：

       public void ExcelToPdf(string path1, string path2)
        {
            Microsoft.Office.Interop.Excel.Application lobjExcelApp = null;
            Microsoft.Office.Interop.Excel.Workbooks lobjExcelWorkBooks = null;
            Microsoft.Office.Interop.Excel.Workbook lobjExcelWorkBook = null;
            string lstrTemp = string.Empty;
            object lobjMissing = System.Reflection.Missing.Value;
            lobjExcelApp = new Microsoft.Office.Interop.Excel.Application();
            lobjExcelApp.Visible = false;
            lobjExcelWorkBooks = lobjExcelApp.Workbooks;
            lobjExcelWorkBook = lobjExcelWorkBooks.Open(path1, lobjMissing, false, lobjMissing, lobjMissing, lobjMissing, true, lobjMissing, lobjMissing, lobjMissing, lobjMissing, lobjMissing, false, lobjMissing, lobjMissing);
            //Microsoft.Office.Interop.Excel 12.0.0.0函数               
            lstrTemp = System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + ".xls" + (lobjExcelWorkBook.HasVBProject ? 'm' : 'x');
            //lstrTemp = System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + ".xls";         
            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);
            lobjExcelWorkBooks.Close();
            lobjExcelApp.Quit();
        }

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