C# xps转txt方法

1.主要代码如下:

注意:使用命名空间System.Windows.Xps.Packaging  需要引用ReachFramework.dll动态库。

using System.Windows.Xps.Packaging;

///

        /// xps文件获取txt
        ///

        /// xps文件路径
        ///
        public static string XpsToText(string strXpsPath)
        {
            try
            {
                if (!File.Exists(strXpsPath))
                    return "";
                string strContent = "";
                System.Windows.Xps.Packaging.XpsDocument _xpsDocument = new System.Windows.Xps.Packaging.XpsDocument(strXpsPath, System.IO.FileAccess.Read);
                IXpsFixedDocumentSequenceReader fixedDocSeqReader = _xpsDocument.FixedDocumentSequenceReader;

                IXpsFixedDocumentReader _document = fixedDocSeqReader.FixedDocuments[0];

                StringBuilder _currentText = new StringBuilder();
                for (int i = 0; i < _document.FixedPages.Count; i++)
                {
                    IXpsFixedPageReader _page = _document.FixedPages[i];

                    System.Xml.XmlReader _pageContentReader = _page.XmlReader;

                    if (_pageContentReader != null)
                    {
                        while (_pageContentReader.Read())
                        {
                            if (_pageContentReader.Name == "Glyphs")
                            {
                                if (_pageContentReader.HasAttributes)
                                {
                                    if (_pageContentReader.GetAttribute("UnicodeString") != null)
                                    {
                                        _currentText.Append(_pageContentReader.GetAttribute("UnicodeString"));
                                        _currentText.AppendLine("\n");
                                    }
                                }
                            }
                        }
                    }
                }
                strContent = _currentText.ToString();
                _xpsDocument.Close();
                return strContent;
            }
            catch
            {
                return "";
            }
        }