For a project I need the margin at minimum 2cm. I have added footnotes and am wondering if this makes the bottom of the page less than 2cm. It looks the same but I am just looking for clarification. Thank you in advance.
Footnotes are part of the text block, so they will remain above the lower margin. The text block will never be higher than
\textheight. The space for running text will be decreased as needed to make room for the footnotes.
The text block height can be increased or decreased if
\enlargethispage is issued in the page, but footnotes will respect the (modified) height nonetheless.
In limit cases the page can be oversized, but a warning
Overfull \vbox (xxx.yyyyy pt too high) has occurred while \output is active
will appear in the log file. Normal text won't suffer from this problem. Typical candidates for this warning are oversized floats.