This class is experimental, and changes may occur to almost all interfaces. Development is focussed on tagging/functionality as the primary driver; as such, support for design aspects is likely to be lower priority.

It requires LaTeX 2025-11-01 or newer.

The ltx-talk class is focused on producing (on-screen) presentations, along with support material such as handouts and speaker notes. Content is created in a frame environment, each of which can be divided up into a number of slides (actual output pages). A simple 'overlay' notation is used to specify which material appears on each slide within a frame. The class supports a range of environments to enable complex slide relationships to be constructed.

The appearance of slides is controlled by a template system. Many of the elements of slides can be adjusted by setting simple key-based values in the preamble. More complex changes can be implemented by altering specific, targeted definitions without needing to rewrite entire blocks of code. This allows a variety of visual appearances to be selected for the same content source.

The ltx-talk class has syntax similar to the popular beamer class, although there are some (deliberate) differences. However, ltx-talk has been implemented to support creation of tagged (accessible) PDF output as a core aim. As such, it is suited to creating output for reuse in other formats, e.g. HTML conversions, without additional steps.

See CONTRIBUTING.md for details of how best to contribute code to the class: this includes details of what changes are likely (and less likely) to be accepted.

This package is maintained by Joseph Wright: joseph@texdev.net

Released under the LaTeX Project Public License v1.3c or later. See https://www.latex-project.org/lppl.txt