Создать ZIP-файл через C#

  // For complete examples and data files, please go to https://github.com/aspose-zip/Aspose.ZIP-for-.NET
  using (FileStream zipFile = File.Open(dataDir + "CompressSingleFile_out.zip", FileMode.Create))
  {
      //File to be added to archive
      using (FileStream source1 = File.Open(dataDir + "picture123.png", FileMode.Open, FileAccess.Read))
      {
          using (var archive = new Archive(new ArchiveEntrySettings()))
          {
              archive.CreateEntry("picture123.png", source1);
              
              archive.Save(zipFile);
          }
      }
  }

  var dir = "full directory path";
  using (var arch = new Archive())
  {
    arch.CreateEntry("filename.pdf", dir+"file.pdf");
    arch.Save(dir+"pdf-files-archived_result.zip");
  }

  using (FileStream zipFile = File.Open(dataDir + "CompressWithTraditionalEncryption_out.zip", FileMode.Create))
  {
      using (FileStream file1 = File.Open(dataDir + "alice29.txt", FileMode.Open, FileAccess.Read))
      {
      using (FileStream file2 = File.Open(dataDir + "asyoulike.txt", FileMode.Open, FileAccess.Read))
        {
          using (var archive = new Archive(new ArchiveEntrySettings(null, new TraditionalEncryptionSettings("p@s$"))))
          {
            archive.CreateEntry("alice29.txt", file1);
            archive.CreateEntry("asyoulik3.txt", file2);
            archive.Save(zipFile);
          }
                
        }
      }
  }