How to resolve AutoCad "Educational Plot Stamp Removal Issues" on printing?

Can Use  Autocad Comments for remove the Educational Version. Use this CommentsDxfout & Dxfin comments

save your file as (.dxf) format

Save autocad file as dxf format , Close the autocad drawing withoit saving it. Reopen dxf file in auto cad and save it

SAVE THAT FILE TO DXF FORMAT AND THEN OPEN THAT DXF AND SAVE TO DWG 

Firest of all educational products are not for commercial use, if you want to change, we can convert Dwg to Dxf format and again open the converted Dxf file and save as Dwg format. 

Educational products are not for commercial use. 

Save your file as Dxf and then colse and open it again as Dxf

You just need to open and save it in 2015 or higher versions

By buying a commercial licence.