我可以使用以下代码压缩目录:
string dll = @"D:\7z.dll";
string source = @"D:\sample";
string output = @"D:\My7zipped.7z";
SevenZipBase.SetLibraryPath(dll);
SevenZipCompressor compressor = new SevenZipCompressor();
compressor.ZipEncryptionMethod = ZipEncryptionMethod.Aes256;
compressor.CompressionMethod = CompressionMethod.Lzma2;
compressor.CompressionLevel = CompressionLevel.Normal;
compressor.CompressDirectory(source, output);
但我想压缩成一个 PDF 文件。如何压缩成单个 PDF 文件?