public JsonResult <List <PropertyItem> > Get(string file)
        {
            try
            {
                FileStream        original          = File.Open(Utils._storagePath + "\\" + file, FileMode.OpenOrCreate);
                FileFormatChecker fileFormatChecker = new FileFormatChecker(original);

                DocumentType        documentType = fileFormatChecker.GetDocumentType();
                List <PropertyItem> values       = new List <PropertyItem>();

                if (fileFormatChecker.VerifyFormat(documentType))
                {
                    switch (documentType)
                    {
                    case DocumentType.Doc:

                        DocFormat docFormat = new DocFormat(original);
                        values = AppendMetadata(docFormat.GetMetadata(), values);

                        break;

                    case DocumentType.Xls:

                        XlsFormat xlsFormat = new XlsFormat(original);
                        values = AppendMetadata(xlsFormat.GetMetadata(), values);

                        break;

                    case DocumentType.Pdf:

                        PdfFormat pdfFormat = new PdfFormat(original);
                        values = AppendMetadata(pdfFormat.GetMetadata(), values);
                        values = AppendXMPData(pdfFormat.GetXmpData(), values);

                        break;

                    case DocumentType.Png:

                        PngFormat pngFormat = new PngFormat(original);
                        values = AppendMetadata(pngFormat.GetMetadata(), values);
                        values = AppendXMPData(pngFormat.GetXmpData(), values);

                        break;

                    case DocumentType.Jpeg:

                        JpegFormat jpegFormat = new JpegFormat(original);
                        values = AppendMetadata(jpegFormat.GetMetadata(), values);
                        values = AppendXMPData(jpegFormat.GetXmpData(), values);

                        break;

                    case DocumentType.Gif:

                        GifFormat gifFormat = new GifFormat(original);
                        values = AppendMetadata(gifFormat.GetMetadata(), values);
                        values = AppendXMPData(gifFormat.GetXmpData(), values);

                        break;

                    case DocumentType.Bmp:

                        BmpFormat bmpFormat = new BmpFormat(original);
                        values = AppendMetadata(bmpFormat.GetMetadata(), values);

                        break;

                    case DocumentType.Msg:

                        OutlookMessage outlookMessage = new OutlookMessage(original);
                        values = AppendMetadata(outlookMessage.GetMsgInfo(), values);
                        break;

                    case DocumentType.Eml:

                        EmlFormat emlFormat = new EmlFormat(original);
                        values = AppendMetadata(emlFormat.GetEmlInfo(), values);
                        break;

                    case DocumentType.Dwg:

                        DwgFormat dwgFormat = new DwgFormat(original);
                        values = AppendMetadata(dwgFormat.GetMetadata(), values);
                        break;

                    case DocumentType.Dxf:

                        DxfFormat dxfFormat = new DxfFormat(original);
                        values = AppendMetadata(dxfFormat.GetMetadata(), values);
                        break;

                    default:

                        DocFormat defaultDocFormat = new DocFormat(original);
                        values = AppendMetadata(defaultDocFormat.GetMetadata(), values);

                        break;
                    }

                    return(Json(values));
                }
                else
                {
                    throw new Exception("File format not supported.");
                }
            }
            catch (Exception exc)
            {
                throw exc;
            }
        }
            //ExEnd:SourceCADFilePath

            /// <summary>
            /// Reads metadata from dwg file
            /// </summary> 
            public static void GetMetadatPropertiesInDWG()
            {
                try
                {
                    //ExStart:GetMetadatPropertiesInDWG 
                    // initialize DwgFormat class
                    DwgFormat dwgFormat = new DwgFormat(Common.MapSourceFilePath(dwgFilePath));

                    // get metadata
                    CadMetadata metadata = dwgFormat.GetDwgMetadata();

                    // get width
                    int width = metadata.Width;

                    // get height
                    int height = metadata.Height;

                    // get header attribute
                    string[] attributes = metadata.HeaderAttributes;
                    //ExEnd:GetMetadatPropertiesInDWG
                }
                catch (Exception exp)
                {
                    Console.WriteLine(exp.Message);
                }
            }
        public HttpResponseMessage Get(string file)
        {
            try
            {
                File.Copy(Utils._storagePath + "\\" + file, Utils._storagePath + "\\Cleaned_" + file, true);
                FileStream        original          = File.Open(Utils._storagePath + "\\Cleaned_" + file, FileMode.Open, FileAccess.ReadWrite);
                FileFormatChecker fileFormatChecker = new FileFormatChecker(original);
                DocumentType      documentType      = fileFormatChecker.GetDocumentType();


                if (fileFormatChecker.VerifyFormat(documentType))
                {
                    switch (documentType)
                    {
                    case DocumentType.Doc:

                        DocFormat docFormat = new DocFormat(original);
                        docFormat.CleanMetadata();
                        docFormat.ClearBuiltInProperties();
                        docFormat.ClearComments();
                        docFormat.ClearCustomProperties();
                        docFormat.RemoveHiddenData(new DocInspectionOptions(DocInspectorOptionsEnum.All));

                        docFormat.Save(Utils._storagePath + "\\Cleaned_" + file);
                        break;

                    case DocumentType.Xls:

                        XlsFormat xlsFormat = new XlsFormat(original);
                        xlsFormat.CleanMetadata();
                        xlsFormat.ClearBuiltInProperties();
                        xlsFormat.ClearContentTypeProperties();
                        xlsFormat.ClearCustomProperties();
                        xlsFormat.RemoveHiddenData(new XlsInspectionOptions(XlsInspectorOptionsEnum.All));

                        xlsFormat.Save(Utils._storagePath + "\\Cleaned_" + file);

                        break;

                    case DocumentType.Pdf:

                        PdfFormat pdfFormat = new PdfFormat(original);
                        pdfFormat.CleanMetadata();
                        pdfFormat.ClearBuiltInProperties();
                        pdfFormat.ClearCustomProperties();
                        pdfFormat.RemoveHiddenData(new PdfInspectionOptions(PdfInspectorOptionsEnum.All));
                        pdfFormat.RemoveXmpData();

                        pdfFormat.Save(Utils._storagePath + "\\Cleaned_" + file);

                        break;

                    case DocumentType.Png:

                        PngFormat pngFormat = new PngFormat(original);
                        pngFormat.CleanMetadata();
                        pngFormat.RemoveXmpData();

                        pngFormat.Save(Utils._storagePath + "\\Cleaned_" + file);

                        break;

                    case DocumentType.Jpeg:

                        JpegFormat jpegFormat = new JpegFormat(original);
                        jpegFormat.CleanMetadata();
                        jpegFormat.RemoveExifInfo();
                        jpegFormat.RemoveGpsLocation();
                        jpegFormat.RemoveIptc();
                        jpegFormat.RemovePhotoshopData();
                        jpegFormat.RemoveXmpData();

                        jpegFormat.Save(original);

                        break;

                    case DocumentType.Bmp:

                        BmpFormat bmpFormat = new BmpFormat(original);
                        bmpFormat.CleanMetadata();

                        bmpFormat.Save(Utils._storagePath + "\\Cleaned_" + file);

                        break;

                    case DocumentType.Gif:

                        GifFormat gifFormat = new GifFormat(original);
                        gifFormat.CleanMetadata();
                        gifFormat.RemoveXmpData();

                        gifFormat.Save(Utils._storagePath + "\\Cleaned_" + file);

                        break;

                    case DocumentType.Msg:

                        OutlookMessage outlookMessage = new OutlookMessage(original);
                        outlookMessage.CleanMetadata();
                        outlookMessage.RemoveAttachments();

                        outlookMessage.Save(Utils._storagePath + "\\Cleaned_" + file);

                        break;

                    case DocumentType.Eml:

                        EmlFormat emlFormat = new EmlFormat(original);
                        emlFormat.CleanMetadata();
                        emlFormat.RemoveAttachments();

                        emlFormat.Save(Utils._storagePath + "\\Cleaned_" + file);

                        break;

                    case DocumentType.Dwg:

                        DwgFormat dwgFormat = new DwgFormat(original);
                        dwgFormat.CleanMetadata();

                        dwgFormat.Save(Utils._storagePath + "\\Cleaned_" + file);

                        break;

                    case DocumentType.Dxf:

                        DxfFormat dxfFormat = new DxfFormat(original);
                        dxfFormat.CleanMetadata();

                        dxfFormat.Save(Utils._storagePath + "\\Cleaned_" + file);

                        break;

                    default:

                        DocFormat defaultDocFormat = new DocFormat(original);
                        defaultDocFormat.CleanMetadata();
                        defaultDocFormat.ClearBuiltInProperties();
                        defaultDocFormat.ClearComments();
                        defaultDocFormat.ClearCustomProperties();
                        defaultDocFormat.RemoveHiddenData(new DocInspectionOptions(DocInspectorOptionsEnum.All));

                        defaultDocFormat.Save(Utils._storagePath + "\\Cleaned_" + file);

                        break;
                    }
                }
                else
                {
                    throw new Exception("File format not supported.");
                }

                using (var ms = new MemoryStream())
                {
                    original = File.OpenRead(Utils._storagePath + "\\Cleaned_" + file);
                    original.CopyTo(ms);
                    var result = new HttpResponseMessage(HttpStatusCode.OK)
                    {
                        Content = new ByteArrayContent(ms.ToArray())
                    };
                    result.Content.Headers.ContentDisposition =
                        new System.Net.Http.Headers.ContentDispositionHeaderValue("attachment")
                    {
                        FileName = "Cleaned_" + file
                    };
                    result.Content.Headers.ContentType =
                        new MediaTypeHeaderValue("application/octet-stream");

                    original.Close();
                    File.Delete(Utils._storagePath + "\\Cleaned_" + file);
                    return(result);
                }
            }
            catch (Exception exc)
            {
                throw exc;
            }
        }