使用openXML或类似工具将docx (bytes[]格式)转换为pdf (bytes[]格式)

我现在有一个函数，可以使用Microsoft.Office.Interop.Word将docx(bytes[]格式)转换为pdf(bytes[]格式)

效果很好。除了它不能在线工作，因为它需要在服务器上安装WinOffice，而我对此无能为力。

所以我需要去别的东西，我正在考虑openXML(除非你知道任何更好的方法)。

但是我该如何绕过这个呢?我只是想把这个docx文件，转换并返回为字节[]格式的pdf。

我以前在微软的代码。办公室是这样的

public static byte[] ConvertDocx2PDF(byte[] DocxFile, string FileName)
{
    try
    {
        string path = Path.Combine(HttpRuntime.AppDomainAppPath, "MailFiles/DOCX2PDF");
        if (!Directory.Exists(path))
            Directory.CreateDirectory(path);
        Guid id = Guid.NewGuid();
        FileName = id.ToString() + FileName;
        path += "/" + FileName;

        if (File.Exists(path))
            File.Delete(path);
        File.WriteAllBytes(path, DocxFile);
        Microsoft.Office.Interop.Word.Application word = new Microsoft.Office.Interop.Word.Application();
        object oMissing = System.Reflection.Missing.Value;
        word.Visible = false;
        word.ScreenUpdating = false;
        // Cast as Object for word Open method
        Object filename = (Object)path;
        // Use the dummy value as a placeholder for optional arguments
        Microsoft.Office.Interop.Word.Document doc = word.Documents.Open(ref filename, ref oMissing,
            ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing,
            ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing,
            ref oMissing, ref oMissing, ref oMissing, ref oMissing);
        doc.Activate();
        object outputFileName = (object)path.ToLower().Replace(".docx", ".pdf");
        object fileFormat = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatPDF;
        if (File.Exists(outputFileName.ToString()))
            File.Delete(outputFileName.ToString());
        // Save document into PDF Format
        doc.SaveAs(ref outputFileName,
            ref fileFormat, ref oMissing, ref oMissing,
            ref oMissing, ref oMissing, ref oMissing, ref oMissing,
            ref oMissing, ref oMissing, ref oMissing, ref oMissing,
            ref oMissing, ref oMissing, ref oMissing, ref oMissing);
        object saveChanges = Microsoft.Office.Interop.Word.WdSaveOptions.wdDoNotSaveChanges;
        ((Microsoft.Office.Interop.Word._Document)doc).Close(ref saveChanges, ref oMissing, ref oMissing);
        doc = null;
        ((Microsoft.Office.Interop.Word._Application)word).Quit(ref oMissing, ref oMissing, ref oMissing);
        word = null;
        try
        {
            File.Delete(path);
        }
        catch { }
        return File.ReadAllBytes(path.ToLower().Replace(".docx", ".pdf"));
    }
    catch (Exception e)
    {
    }
    byte[] erroByte = new byte[0];
    return erroByte;
}

说。它工作得很好，但在我的服务器上不起作用。

任何想法如何做到这一点在openXML或其他?

感谢您的宝贵时间