Can't the border thickness of calligraphy seal be adjusted? Why?

It can be adjusted. Zhu Caihong's seal is not only used for daily life, but also for calligraphy and painting inscriptions, so it has become a unique work of art in China. According to the regulations of calligraphy seal, the border thickness of calligraphy seal is customized according to the needs of users, and users can adjust their seal margins at local calligraphy shops.