The GroupDocs Metadata API provides the feature to read basic metadata in CAD files. The supported CAD formats are:
DWG DXF Reading CAD metadata To access metadata in a CAD drawing, the GroupDocs.Metadata API provides the CadRootPackage.CadPackage property.
The following code snippet reads metadata associated with a CAD file.
AdvancedUsage.ManagingMetadataForSpecificFormats.Cad.CadReadNativeMetadataProperties
using (Metadata metadata = new Metadata(Constants.InputDxf)) { var root = metadata.GetRootPackage(); Console.WriteLine(root.CadPackage.AcadVersion); Console.WriteLine(root.CadPackage.Author); Console.WriteLine(root.CadPackage.Comments); Console.WriteLine(root.CadPackage.CreatedDateTime); Console.WriteLine(root.CadPackage.HyperlinkBase); Console.WriteLine(root.CadPackage.Keywords); Console.WriteLine(root.CadPackage.LastSavedBy); Console.WriteLine(root.CadPackage.Title); // ....of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images and more...