1. First, we manually write down our signatures on a piece of white paper, take photos of our signatures with our mobile phones and transmit them to the computer. 2. Then, we 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, we found the "Insert" menu in the software menu bar, and continued 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 we just imported into the computer. 5. After inserting the signed picture, we select the picture, find the "Arrange" option group in the newly-appeared "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. 7. Finally, we can resize the picture to a suitable size and move the picture to a suitable position in the document. Therefore, there is an electronic signature that cannot be moved.