Use this tag for questions about the a0poster documentclass. This class is used to create posters on A0 paper (841 mm × 1189 mm) but the class also supports smaller paper sizes A1, A2 and A3.
The {a0poster} document class supports posters in landscape or portrait in the sizes A0, A1, A2 and A3. It contains additional font size commands to support large fonts on the poster.
The packages beamerposter and modernposter are available as extensions of a0poster.
The A0 paper format is defined by ISO 216, which specifies international standard (ISO) paper sizes used in most countries in the world today (with the United States and Canada as the main exceptions). "A" series metric paper has an aspect ratio of the square root of two, meaning that all sizes are the same shape. The series runs from A0 (841 mm × 1189 mm) to A10 (26 mm × 37 mm). The most common is A4 (210 mm × 297 mm).
