在C#中，PDFsharp库使用(三)：PDF提取

 {
     string oneFilePath = GetOneFilepath();
     if (!string.IsNullOrEmpty(oneFilePath))
       {
          textBox3.Text = oneFilePath;
       }
 }

 private void button10_Click(object sender, EventArgs e)
  {
      string FileFolder = SelectFolder();
      if (!string.IsNullOrEmpty(FileFolder))
      {
         textBox4.Text = FileFolder;
      }
 }

  private void button11_Click(object sender, EventArgs e)
  {
       int x = (int)numericUpDown2.Value;
       int y= (int)numericUpDown3.Value;
       string inputFilePath = textBox3.Text;
       string outputDirectory = textBox4.Text;
        // 确保输出目录存在
        if (!Directory.Exists(outputDirectory))
            {
                Directory.CreateDirectory(outputDirectory);
            }
       string outputFilePath1 = Path.Combine(outputDirectory, $"{Path.GetFileNameWithoutExtension(inputFilePath)}_{x}-{y}.pdf");
       string outputFilePath2 = Path.Combine(outputDirectory, $"{Path.GetFileNameWithoutExtension(inputFilePath)}_other.pdf");
       ExtractPages(inputFilePath, x, y, outputFilePath1);
       SaveRemainingPages(inputFilePath, x, y, outputFilePath2);
       MessageBox.Show("完成", "提示");
}