How should I change font size for the entire document? I want to design a presentation and fonts should be larger, all of them.

  • 1
    Uh, use the fontsize argument to the documentclass? Dec 20, 2010 at 12:45
  • 12pt is the maximum, as far as I know. I need bigger fonts, 16pt actually.
    – yegor256
    Dec 20, 2010 at 12:51
  • 5
    Have a look here. Is your question answered there? Dec 20, 2010 at 13:03

2 Answers 2


Not really an answer to your question. But there are special classes for presentations (which is what you want to do) that change fonts etc.

The most famous is probably beamer but there are also some specifically for transparencies if you want that. Have a look at the catalogue.

  • Just FYI, the way beamer handles the problem is to make the document itself very small, so 12pt fonts look very big in full-screen mode. It works quite well, though.
    – frabjous
    Dec 20, 2010 at 14:16
  • Yes, you are absolutely right. It does change the default to sans serif though ;-) Dec 20, 2010 at 14:19
  {\fontsize{40pt}{48pt}\selectfont 40pt,} 
  {\Huge It's Huge,} 
  {\fontsize{20pt}{24pt}\selectfont 30pt,} 
  {\tiny It's tiny,} 
  {\fontsize{3.5pt}{4.2pt}\selectfont 3.5pt,}


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