In reply to Waynette Tubbs.

Many posters - primarily those done by presenters who don't have professional graphics assistance - are essentially PowerPoint presentations with larger slides. In that case, the proceedings could contain those slides.

Other posters are quite sophisticated and can't readily be split into pieces in that way, and those posters might require separate papers. It could be up to the presenter to decide how to do it. Now that the proceedings are no longer published on paper, the rule that information must fit into letter-size chunks has lost some of its relevance.

The problem will be when there's not enough room on the poster for extended code examples. That might call for a separate file or files containing code.

Perhaps the whole concept of letter-sized PDFs should be dropped. They're hard to read on a computer screen unless you have a really large monitor, and nearly impossible to read on a tablet or phone. Maybe papers should be distributed in Kindle or .mobi or HTML instead, so the presentation can easily adapt to the device where it's being displayed.