First, set the user name and password to log in to the platform before using it.

Then fill in the name, personal certificate type and certificate number, mobile phone number, graphic verification code and SMS verification code truthfully.

Next, when setting personalized signature pictures, if you want to upload pictures, click the white box area to upload signature pictures locally; If you want to use handwritten signature, click the drop-down menu and select "Use Handwritten Signature Sketchpad", then you can set the signature picture by handwriting signature on the sketchpad that appears. When you are finished, click the Save button.

Finally, make sure the information is correct and submit it.