1, the method of removing common stamp:

First, open Chen Hao CAD software, then press and hold Ctrl+P to open the print model dialog box, find and uncheck Open Print Seal. As shown in the figure below:

2, remove the stamp of the education version (provided that the computer does not have the education version of CAD) method:

First, use Chen Hao CAD drawing software to save the file to be printed in DXF format, and then close the file; Then reopen the saved DXF file and repeat the saving operation. At this point, save it as a standard DWG file, and then close it to remove the stamp of the education version when printing.