LaTeX

Beamer

Beamer is a LaTeX document class for creating presentation slides, with a wide range of templates and a set of features for making slideshow effects. - Wikipedia

For all details, see the beamer class documentation.

Change aspect ratio

Use the aspectratio= documentclass option to specify an aspect ratio (defaults to 4:3, 16:9 [169] and 16:10 [1610] are very common ones).

Create handout slides

Use the handout documentclass option to get slides which ignore the \pause instruction.

Show notes

If your presentation includes \note directives whose contents you'd like to see when holding the presentation, you can try these directives:

\setbeameroption{show notes}   % show slides with notes below
\setbeameroption{show notes on second screen=right}   % show slides with notes to the right

The beamer class generates the links in the Table of Contents (ToC) independent of the hyperref package and the hyperref settings don't apply. One can workaround this issue by using the NoHyper environment.

See also