C#实现压缩pdf文件的示例代码

//获取文本压缩选项
textCompression = compressor.Options.TextCompressionOptions;
//设置是否压缩字体
textCompression.CompressFonts = true;
//设置是否嵌入字体
textCompression.UnembedFonts = true;

//获取图片压缩选项
 ImageCompressionOptions imageCompression = compressor.Options.ImageCompressionOptions;
//设置是否压缩图片
imageCompression.CompressImage = true;
//设置图片质量
imageCompression.ImageQuality = ImageQuality.Low;
//设置是否调整图片大小
imageCompression.ResizeImages = true;

using Spire.Pdf;
using Spire.Pdf.Conversion.Compression;

namespace CompressPdf
{
    class Program
    {
        static void Main(string[] args)
        {
            //实例化 PdfCompressor 类对象并加载PDF文件
            PdfCompressor compressor = new PdfCompressor("文件.pdf");

            //获取文本压缩选项
            TextCompressionOptions textCompression = compressor.Options.TextCompressionOptions;

            //设置是否压缩字体
            textCompression.CompressFonts = true;

            //设置是否嵌入字体
            textCompression.UnembedFonts = true;

            //获取图片压缩选项
            ImageCompressionOptions imageCompression = compressor.Options.ImageCompressionOptions;

            //压缩图片
            imageCompression.CompressImage = true;

            //设置图片质量
            imageCompression.ImageQuality = ImageQuality.High;

            //调整图片大小
            imageCompression.ResizeImages = true;

            //将压缩后PDF保存至指定位置
            compressor.CompressToFile("压缩.pdf");
        }
    }
}