C#学习笔记（23）——C#将PPT批量转为JPG（aspose方法）

<Window x:Class="PPTtoJPG.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Button Content="打开" HorizontalAlignment="Left" Height="32" Margin="370,64,0,0" VerticalAlignment="Top" Width="103" Click="Button_Click"/>
        <Button Content="开始转成PDF" HorizontalAlignment="Left" Height="40" Margin="48,205,0,0" VerticalAlignment="Top" Width="103" Click="Button_Click_1"/>
        <Label Content="PPT路径" HorizontalAlignment="Left" Height="32" Margin="34,64,0,0" VerticalAlignment="Top" Width="77"/>
        <TextBox Name="txtBoxPath" HorizontalAlignment="Left" Height="35" Margin="129,66,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="227"/>
        <Button  Content="开始转成图片" HorizontalAlignment="Left" Height="40" Margin="307,205,0,0" VerticalAlignment="Top" Width="117" Click="Button_Click_2"/>

    </Grid>
</Window>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO;
using Aspose.Slides;
using System.Reflection;
using Aspose.Pdf;
using System.Drawing.Imaging;
using System.Drawing;
using Aspose.Pdf.Devices;


namespace PPTtoJPG
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            File.Delete("log.txt");

        }
        private void ShowLog(string log)
        {
            File.AppendAllText("log.txt", "\r\n" + DateTime.Now.ToString() + ": " + log);
        }
        private void Button_Click(object sender, RoutedEventArgs e)
        {

        }
        //PPT转成PDF
        private void Button_Click_1(object sender, RoutedEventArgs e)
        {

            //Crack();
            string pptPath = txtBoxPath.Text;
            if (pptPath != "" && Directory.Exists(pptPath))
            {
                DirectoryInfo pptInfos = new DirectoryInfo(pptPath);


                foreach (FileInfo pptInfo in pptInfos.GetFiles("*.ppt*"))
                {
                    //如果已经存在这个pdf就跳过
                    if (File.Exists(pptInfo.FullName.Split(‘.‘)[0] + ".pdf"))
                    {
                        continue;
                    }
                    try
                    {
                        Presentation pres = new Presentation(pptInfo.FullName);

                        pres.Save(pptInfo.FullName.Split(‘.‘)[0] + ".pdf", Aspose.Slides.Export.SaveFormat.Pdf);

                        Console.WriteLine(pptInfo.FullName.Split(‘.‘)[0] + ".pdf");
                    }
                    catch (Exception)
                    {

                        //throw;
                        Console.WriteLine("无法生成" + pptInfo.FullName.Split(‘.‘)[0] + ".pdf");
                        ShowLog("无法生成" + pptInfo.FullName.Split(‘.‘)[0] + ".pdf");
                        //MessageBox.Show("无法生成" + pptInfo.FullName.Split(‘.‘)[0] + ".pdf");
                        continue;
                    }

                }
                MessageBox.Show("转换pdf完成！");
            }
            else
            {
                MessageBox.Show("路径为空或不存在！");
            }
        }


        //PDF转成JPG
        private void Button_Click_2(object sender, RoutedEventArgs e)
        {
            string pdfPath = txtBoxPath.Text;
            if (pdfPath != "" && Directory.Exists(pdfPath))
            {
                DirectoryInfo pdfInfos = new DirectoryInfo(pdfPath);

                foreach (FileInfo pdfInfo in pdfInfos.GetFiles("*.pdf"))
                {

                    Directory.CreateDirectory(pdfInfo.FullName.Split(‘.‘)[0]);
                    //open document
                    Document pdfDoc = new Document(pdfInfo.FullName);
                    for (int i = 0; i < pdfDoc.Pages.Count; i++)
                    {
                        string imgPath = pdfInfo.FullName.Split(‘.‘)[0] + @"\" + (i + 1).ToString() + ".jpg";
                        using (FileStream imageStream = new FileStream(imgPath, FileMode.Create))
                        {
                            //Width, Height, Resolution, Quality
                            //Quality [0-100], 100 is Maximum
                            //create Resolution object
                            //300是分辨率
                            Resolution resolution = new Resolution(300);
                            //默认是3000x2250尺寸,100是画质最高
                            JpegDevice jpegDevice = new JpegDevice(960, 720, resolution, 90);
                            //convert a particular page and save the image to stream
                            jpegDevice.Process(pdfDoc.Pages[i + 1], imageStream);
                            //close stream
                            imageStream.Close();
                        }
                    }
                }
                MessageBox.Show("转换图片完成！");
            }
            else
            {
                MessageBox.Show("路径为空或不存在！");
            }
        }
    }
}