1. The drawings converted into PDF have the words "Autodesk Education Edition Product Production". As shown in the figure below.
2. Save the drawing again. Open the drawing and click Save As. As shown in the figure below.
3. Save the drawing as AutoCAD 2004/LT 2004 DXF (*. DXF)。 As shown in the figure below.
4. Open the saved drawing again. As shown in the figure below.
5. After opening, it will be converted into pdf format, and the words "utodesk Education Edition Product Production" will disappear. As shown in the figure below.