latex change bottom margin code example

Example 1: latex increase bottom margin article class

\usepackage[top=2.75cm, bottom=2.50cm, left=3.00cm, right=2.50cm]{geometry}

Example 2: latex top margin bottom margin

\usepackage[right=1.0in, left=1.0in, top=1.2in, bottom=1.0in]{geometry}