When Word inserts a signature, it will add a certain amount of blank space around the signed picture, which will appear when viewed on the mobile phone.

When Word inserts a signature, it usually uses a picture as the signature, and there will be a default margin (that is, a border) around the inserted picture. This is because Word needs to set a certain margin to prevent text, tables and other content from overlapping with the signature, which will affect the reading and display effect of the document. When changing a mobile phone, there may be a gap because the screen size of the mobile phone is relatively small and the margin is relatively large.

When inserting a signature in Word, we need to pay attention to the factors such as picture margin and picture size, and treat the display effect of mobile phone and computer differently to ensure the reading and display effect of the document.