1, sign the paper, and make the paper signature into a picture file with a digital camera, scanner or mobile phone camera;

2, open the bitmap vectorization tool (such as AlgoLab

picture

Vector), the signature image file vectorization, as shown in figure;

3. Click the file menu-Save as dxf to save the file to the appropriate path;

4. Open CAD and open the signed dxf file, as shown in the figure;

5. Click View menu-Zoom-Range, as shown;

6. Delete the redundant lines, and complete the CAD electronic signature.