Today, when you are finished modifying the project, open the project with autocad2020 and prompt: the graphic is saved with the student edition product and marked as a print seal example_2016/2020 ->(change) example_2016/2020_change File Warning example_2016 no example_2020 no example_2016_change autocad2016 no,autocad2020 warning example_2020_change autocad2020 waring Summary: modified files will be prompted when opened by autocad2020 I don't think my users can handle it

Hi, This is a limitation of the trial version. - Wout

thanks