GetImageStream

public Stream GetImageStream()

// 创建解析器类的实例
using (Parser parser = new Parser(filePath))
{
    // 从文档中提取图像
    IEnumerable<PageImageArea> images = parser.GetImages();
    
    // 检查是否支持图片提取
    if (images == null)
    {
        Console.WriteLine("Page images extraction isn't supported");
        return;
    }

    // 遍历图像
    foreach (PageImageArea image in images)
    {
        // 打开图像流
        using (Stream imageStream = image.GetImageStream())
        {
            // 创建文件保存图片
            using (Stream destStream = File.Create(Guid.NewGuid().ToString() + image.FileType.Extension))
            {
                byte[] buffer = new byte[4096];
                int readed = 0;

                do
                {
                    // 从图像流中读取数据
                    readed = imageStream.Read(buffer, 0, buffer.Length);

                    if (readed > 0)
                    {
                        // 向文件流中写入数据
                        destStream.Write(buffer, 0, readed);
                    }
                }
                while (readed > 0);
            }
        }
    }
}

public Stream GetImageStream(ImageOptions options)

// 创建解析器类的实例
using (Parser parser = new Parser(filePath))
{
    // 从文档中提取图像
    IEnumerable<PageImageArea> images = parser.GetImages();
    
    // 检查是否支持图片提取
    if (images == null)
    {
        Console.WriteLine("Page images extraction isn't supported");
        return;
    }

    // 创建以 PNG 格式保存图像的选项
    ImageOptions options = new ImageOptions(ImageFormat.Png);
    
    // 遍历图像
    foreach (PageImageArea image in images)
    {
        // 打开图像流
        using (Stream imageStream = image.GetImageStream(options))
        {
            // 创建文件保存图片
            using (Stream destStream = File.Create(Guid.NewGuid().ToString() + ".png"))
            {
                byte[] buffer = new byte[4096];
                int readed = 0;

                do
                {
                    // 从图像流中读取数据
                    readed = imageStream.Read(buffer, 0, buffer.Length);

                    if (readed > 0)
                    {
                        // 向文件流中写入数据
                        destStream.Write(buffer, 0, readed);
                    }
                }
                while (readed > 0);
            }
        }
    }
}