Hi @tukafawzi,
Thanks for reaching out to us.
To make the header padding left in 10px, go to challan settings > PDF CSS Style > Invoice Template CSS > then use the below CSS code, And Save Changes
td.seller { text-align: left; padding-left:10px}
To remove the last row border and add a new border after the shipping row, you need to use the below CSS,
.total-last-td-value,.total-last-td-label{border-bottom:0}
td.shipping-value,td.shipping-label { border-bottom: 2px solid #AED6CF; }
Additionally you can follow this screenshot – https://img001.prntscr.com/file/img001/UCwCpwnaSG2u5zphhU2HqA.png
If you need more help, please let us know.