a4paper ignores 14pt

Question

I need font size = 14 in article document, but when I change

\documentclass[a4paper,11pt]{article}

to

\documentclass[a4paper,14pt]{article}

font becomes even smaller. How to change font size?

Answer 1

Document class article only supports 10pt, 11pt, and 12pt. The default is 10pt. Option 14pt is unknown, therefore you are getting 10pt.

You can get larger sizes with extsizes:

\documentclass[a4paper,14pt]{extarticle}
\usepackage{geometry}

Package geometry (or hyperref or some graphics drivers like pdftex.def or …) set the paper size to the output media.