1. Right-click on the digital signature line, then select "Sign".

2. Complete your name on the text field or select an image if you have a picture of your signature, If you choose to use a picture: Click the “Insert Pictures” menu box, click “From a File” and select your signature image file. From there, click “Select” to place the image onto your signature line.

3. If you are using the signature for the first time, you will need to select the correct signature, Click on change, then click on "More Options" then select the one  where the Issuer is ki-USKIPKI-CA-2, then click on OK

4. Then click on "Sign"