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| Name | DXF | WMF |
| Full name | DXF - Drawing Interchange Format | Windows Metafile |
| File extension | .dxf | .wmf |
| MIME type | image/vnd.dxf | application/x-msmetafile, application/wmf, application/x-wmf, image/wmf, image/x-wmf, image/x-win-metafile, zz-application/zz-winassoc-wmf |
| Developed by | Autodesk | Microsoft |
| Type of format | CAD | Image File |
| Description | AutoCAD DXF (Drawing Interchange Format, or Drawing Exchange Format) is a CAD data file format developed by Autodesk for enabling data interoperability between AutoCAD and other programs. Versions of AutoCAD from Release 10 and up support both ASCII and binary forms of DXF. Earlier versions support only ASCII. | Developed by Microsoft, the .wmf format is a proprietary graphics file type. WMF was first designed to act as a format that allowed vector graphics to be converted to bitmap images and vice versa. The WMF acted as a bridge file, enabling compatibility between the two formats. As new platform independent image formats such as JPEG were developed the need for bridging files such as WMF was removed. The most well known use of the file type is for the early incarnations of clip art that were bundled with Microsoft Office. |
| Technical details | As AutoCAD has become more powerful, supporting more complex object types, DXF has become less useful. Certain object types, including ACIS solids and regions, are not documented. DXF coordinates are always without dimensions so that the reader or user needs to know the drawing unit or has to extract it from the textual comments in the sheets. | A .wmf file may contain both vector graphics and bitmap images to enable portability between two incompatible platforms. The file contains a list of instructions that allows the graphics device to understand how to render the file. It is a 16 bit file. |
| Associated programs | AutoCAD | Microsoft Publisher, Microsoft Word, QuarkXPress |
| Wiki | https://en.wikipedia.org/wiki/AutoCAD_DXF | http://en.wikipedia.org/wiki/Windows_Metafile |