1. First, write down the signature manually on a piece of white paper, take a photo of the signature with your mobile phone and transmit it to your computer.

2. Then, open the word software on the computer and enter the word document that needs to be added to the signature service.

3. After entering the document, find the Insert menu in the software menu bar and continue to find the Illustration tab under the Insert menu.

4. Select the "Picture" option function in the "Illustration" tab to insert the handwritten signature picture just imported into the computer.

5. After inserting the signed picture, select the picture, find the "Arrange" option group in the new "Format" menu in the menu bar at the top of the software, and find the "Text Wrap" option in this option group.

6. Click on the small triangle next to the "Text Wrap" option to open its drop-down menu, and select the "Floating Above Text" option from the drop-down menu options.

Signature function and nature:

1, to prevent impersonation, others cannot forge the signature of the message, because the private key is only known to the signer, so others cannot forge the correct signature result. Require private key holders to keep their private keys safe.

2. Anti-tampering For digital signatures, the signature and the original file have formed a mixed whole data, which cannot be tampered with, thus ensuring the integrity of the data.

3. In digital signature, if technologies such as serial number and time stamp are added to the signature message, replay attacks can be prevented.

4. Anti-denial digital signature can identify identity, and it is impossible to impersonate and forge. The signer cannot deny his signature. In order to prevent the receiver from denying it, in the digital signature system, the receiver is required to return the message signed by itself to the other party or the third party, or the third party arbitration mechanism is introduced. In this way, neither side can deny it.