DWF Version Conversion
Essential versions of DWF files are version 4.2, version 5.5, and version 6.0.
To upgrade or downgrade your DWF drawing, follow the steps,
1. Open a drawing from File->Open or click the Open button on the toolbar.
2. Save the drawing by clicking the Save button on the toolbar or click from the menu File->Save As.
3. Select DWF from save as type drop list
4. Select Binary DWF, Compressed DWF, or ASCII DWF from the File Format drop list
4. Select a version as the specification for your DWF file to be created. Available options are version 4.2, version 5.5, and version 6.0
5. Click Save button to convert and save your drawing.