1. First, we turn on the computer, enter the desktop, then find the start icon on the left and click Open. Next, we find the word20 13 option in the start menu, and then click Open.

2. Then we will enter the word software interface, and we will click on the file at the top. Then click the blank document option in the pop-up interface.

3. After entering the document interface, we click the insert option above. Then click the picture option in the function bar below.

Next, we just need to find our handwritten signature picture in the pop-up window, and then click OK.

5. Then we can see the picture with our handwritten signature inserted in the word document. Next, we select the picture and click the delete background option above.

6. After the operation is completed, we can click the "Keep Changes" option above.

7. Then we can see that the inserted picture becomes text. Next, we right-click the signature to open the menu and find the word wrap option. Then click the "float above text" option in the extended menu.

8. Next, our handwritten signature has been inserted into our word document.