c# – 以编程方式将Word(docx)转换为PDF

部分示例：
这是我很久以前创建的一个类,用于将文件转换为pdf

using unoidl.com.sun.star.lang;
using unoidl.com.sun.star.uno;
using unoidl.com.sun.star.container;
using unoidl.com.sun.star.frame;
using unoidl.com.sun.star.beans;
using unoidl.com.sun.star.view;
using System.Collections.Generic;
using System.IO;

namespace QOpenOffice
{
    public enum AppType
    {
        Writer,Calc,Impress,Draw,Math
    }

    public enum ExportFilter{
        Word97,WriterPDF,CalcPDF,DrawPDF,ImpressPDF,MathPDF
    }

    class OpenOffice
    {
        private XComponentContext context;
        private XMultiServiceFactory service;
        private XComponentLoader component;
        private XComponent doc;

        private List<string> filters = new List<string>();

        #region Constructors
        public OpenOffice()
        {
            /// This will start a new instance of OpenOffice.org if it is not running,/// or it will obtain an existing instance if it is already open.
            context = uno.util.Bootstrap.bootstrap();

            /// The next step is to create a new OpenOffice.org service manager
            service = (XMultiServiceFactory)context.getServiceManager();

            /// Create a new Desktop instance using our service manager
            component = (XComponentLoader)service.createInstance("com.sun.star.frame.Desktop");

            // Getting filters
            XNameContainer filters = (XNameContainer)service.createInstance("com.sun.star.document.FilterFactory");
            foreach (string filter in filters.getElementNames())
                this.filters.Add(filter);
        }

        ~OpenOffice()
        {
            if (doc != null)
                doc.dispose();
            doc = null;
        }
        #endregion

        #region Private methods
        private string FilterToString(ExportFilter filter)
        {
            switch (filter)
            {
                case ExportFilter.Word97: return "MS Word 97";
                case ExportFilter.WriterPDF: return "writer_pdf_Export";
                case ExportFilter.CalcPDF: return "calc_pdf_Export";
                case ExportFilter.DrawPDF: return "draw_pdf_Export";
                case ExportFilter.ImpressPDF: return "impress_pdf_Export";
                case ExportFilter.MathPDF: return "math_pdf_Export";
            }
            return "";
        }
        #endregion

        #region Public methods
        public bool Load(string filename,bool hidden)
        {
            return Load(filename,hidden,"","");
        }
        public bool Load(string filename,bool hidden,int filter_index,string filter_options)
        {
            return Load(filename,filters[filter_index],filter_options);
        }
        public bool Load(string filename,string filter_name,string filter_options)
        {
            List<PropertyValue> pv = new List<PropertyValue>();
            pv.Add(new PropertyValue("Hidden",new uno.Any(hidden),PropertyState.DIRECT_VALUE));
            if (filter_name != "")
            {
                pv.Add(new PropertyValue("FilterName",new uno.Any(filter_name),PropertyState.DIRECT_VALUE));
                pv.Add(new PropertyValue("FilterOptions",new uno.Any(filter_options),PropertyState.DIRECT_VALUE));
            }

            try
            {
                doc = component.loadComponentFromURL(
                    "file:///" + filename.Replace('','/'),"_blank",pv.ToArray());
                return true;
            }
            catch
            {
                doc = null;
                return false;
            }
        }
        public bool Print()
        {
            return Print(1,"");
        }
        public bool Print(int copies,string pages)
        {
            List<PropertyValue> pv = new List<PropertyValue>();
            pv.Add(new PropertyValue("CopyCount",new uno.Any(copies),PropertyState.DIRECT_VALUE));
            if (pages != "")
                pv.Add(new PropertyValue("Pages",new uno.Any(pages),PropertyState.DIRECT_VALUE));
            //if (doc is XPrintable)
            try
            {
                ((XPrintable)doc).print(pv.ToArray());
                return true;
            }
            catch { return false; }
        }
        public bool Save(string filename,ExportFilter filter)
        {
            return Save(filename,FilterToString(filter));
        }
        public bool Save(string filename,string filter)
        {
            List<PropertyValue> pv = new List<PropertyValue>();
            pv.Add(new PropertyValue("FilterName",new uno.Any(filter),PropertyState.DIRECT_VALUE));
            pv.Add(new PropertyValue("Overwrite",new uno.Any(true),PropertyState.DIRECT_VALUE));
            try
            {
                filename = filename.Replace("","/");
                ((XStorable)doc).storeToURL("file:///" + filename,pv.ToArray());
                return true;
            }
            catch { return false; }
        }
        public bool ExportToPdf(string filename)
        {
            filename = Path.ChangeExtension(filename,".pdf");
            bool ret = Save(filename,"writer_pdf_Export");
            if (!ret) ret = Save(filename,"impress_pdf_Export");
            if (!ret) ret = Save(filename,"calc_pdf_Export");
            if (!ret) ret = Save(filename,"draw_pdf_Export");
            if (!ret) ret = Save(filename,"math_pdf_Export");
            return ret;
        }
        public void Close()
        {
            doc.dispose();
            doc = null;
        }

        public bool New(AppType app,bool hidden)
        {
            try
            {
                string sapp = "private:factory/";
                switch (app)
                {
                    case AppType.Writer:
                        sapp += "swriter";
                        break;
                    case AppType.Calc:
                        sapp += "scalc";
                        break;
                    case AppType.Impress:
                        sapp += "simpress";
                        break;
                    case AppType.Draw:
                        sapp += "sdraw";
                        break;
                    case AppType.Math:
                        sapp += "smath";
                        break;
                }
                PropertyValue pv = new PropertyValue("Hidden",PropertyState.DIRECT_VALUE);
                doc = component.loadComponentFromURL(sapp,new PropertyValue[1] { pv });
                return true;
            }
            catch
            {
                doc = null;
                return false;
            }
        }
        #endregion


        #region Properties
        public List<string> Filters
        {
            get { return filters; }
        }
        #endregion
    }
}