How to programmatically convert Office documents to PDF and HTML?

Question

C++ / C#

I've looked all over the internet and there isn't much on this subject.
LibreOffice is offered everywhere, but for some reason it didn’t start for me with this method:
\"C:\\Program Files (x86)\\LibreOffice\\program\\soffice.exe\" --headless --writer --convert-to html file.docx
Maybe there are some libraries for such cases?

Answer 1

there is. quite googling. all the free solutions found were reduced to various wrappers over a binary tool, I don’t remember the name anymore. everything seemed rather muddy to me - everywhere there is a multi-pass, through conversion to html. and the task was not just from doc, from rtf to get pdf, in C #.
in the end, if you have an MS office under Windows, it turned out to be the easiest way to use Word. I think that it will not be difficult to translate into pluses

internal static bool wordAsConverter(string rtf, string pdf, bool verb = true, bool clean = true)
{
  $"\t..try convert to pdf...".print();
  var res = false;
  var app = new Application();
  try
  {
    var doc = app.Documents.Open(rtf);
    doc.ExportAsFixedFormat(pdf, WdExportFormat.wdExportFormatPDF);
    doc.Close(false);
    res = true;
    var fn = Path.GetFileName(rtf);
    if (verb) $"\t{fn} converted to pdf".print();
    if (clean)
    {
      File.Delete(rtf);
      if (verb) $"\t{fn} deleted".print();
    }
  }
  catch (Exception e) { e.Message.print(); }
  finally { app.Quit(false); }
  return res;
}

Answer 2

I in the hand-made articles with MSO worked through OLE. All methods and parameters are described in the built-in help.