1. First save the file in dxf format, then reopen CAD, open the file in dxf format just saved, and save it in dwg format, so as to remove the production mark of Autodesk Education Edition when printing.

2. Use other dwg version conversion tools (such as AcmeCADConverter) to convert to R 14.

3. Save it as a DWT template file and save it back to DWG after opening.

Note: The above methods only support DWG graphics files made by pure CAD, such as drawings made by other CAD plug-in tools (such as Tianzheng), so please use them with caution.

For the newly discovered problems, if there is an error when saving DXF as DXF file by the above methods, you can try the following methods:

(1), open the DWG file marked Education Edition and save it in 2000 or R 14 file format;

② Open the DWG file saved in 2002, and select DXF format saved as 2000 or R 14;

③ Open the saved DXF file and save it in DWG format.

Or:

(1), open the DWG file marked Education Edition and save it in 2000 file format;

② Open the DWG file newly saved in 2002, and then save it as a DWG file in R 14 format. If you reopen the file, there will be no education version prompt.