You can easily update your personal signature by following the steps below:
Step 1: Access your User Profile. Click on your profile photo and then on My profile .
Step 2: You will be directed to your profile single page. Click on the pencil button to access the edit mode.
Step 3: Click on the signature section to expand and un- check the "Use the default signature" box. You are now ready to update your signature. You can either use the text editor to make the updates, or the source code. This last option demands some coding knowledge.
Option 1: Text editor. Use the tool bar to update the fonts, color, size etc. You can also click on the text area and add additional text or delete parts of the existing one.
Option 2: Click on the source code button and you will see a popup with the source code. You can make any changes needed and click OK to save them.