Crthuky

When creating a presentation, I sometimes create extra slides that contain additional information, a more thorough explanation, or an extra plot pertaining to certain parts of my talk. These extra slides are usually in a separate PDF and the document is usually only opened if an audience member asks a question or requests information and one of my extra slides supplements my response nicely.

I am wondering if it's possible to insert these slides into my presentation with the two following options:

1. The extra slides are skipped when progressing through the presentation unless...


2. I click on a hyperlink placed somewhere on the slide. If clicked, we traverse to the extra slide. From this slide, continuing to the 'next' slide would send us back to the slide that got us here originally.

The above can be accomplished with two (or more) PDFs (one with the presentation, one -- or more -- with the supplemental slides) via hyperref but ideally I would like to only have one document.

I am not familiar enough with ifthen to know if it can be done with that package.

Any help would be much appreciated.

See Beamer manual sections 10.7 and 11. Basically, you can use an appendix to make a set of slides after your main presentation (they don't show up in the main ToC). And you can use hyperlink commands to jump to particular slides (or overlays of slides, even). Short example:

documentclassbeamer
usethemeWarsaw
titleThe Title
authorThe Author
datetoday
begindocument
sectionOne
beginframe[label=main]
I suspect someone might ask about supplemental material
hyperlinksupplementalbeamerbuttonhere.
endframe
appendix
sectionMore
beginframe[label=supplemental]
Supplemental content.
Back to hyperlinkmainbeamerbuttonmain.
endframe
enddocument

If you need to exclude the appendix slides from the slide counter, see this question.

When your extra information is not too long, you could try to use layers.

If somebody asks, you switch between layers in your document. After this, you can switch back to your presentation layer and continue.

This will not help if your additional material contains many slides (you could define multiple layers, but I think it will become complicated).

And you are restricted in the usage of or pdf-viewer.

Example:

documentclassbeamer

usepackagetikz
usepackageocg-p
usepackageblindtext
usepackagehyperref
usepackagepgfplots, pgfplotstable

%----------------------------------------------------------------%
begindocument
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
beginframe
frametitleTitle
 % Insert links to toggle layer visibility
 toggleocgs[]pic remarkExplanation%Toggle layer

 begintikzpicture
 beginocgGraphicpic1
 beginaxis[
 ybar stacked, bar width=10mm,
 width=0.9textwidth, height=0.7textheight, 
 symbolic x coords=AA,BB,CC,DD,
 xtick=data,
 nodes near coords, nodes near coords align=vertical,
 ]
 addplot [fill=red] coordinates (AA,712) (BB,267) (CC,240) (DD,244); 
 addplot [fill=blue] coordinates (AA,433) (BB,151) (CC,1413) (DD,50);
 legendActive,Inactive
 endaxis
 endocg
 %% 
 beginocgRemarksremark0
 node [overlay,anchor=south west] at (0,0)
 parbox[b]0.8textwidthblindtext;
 endocg
 endtikzpicture
endframe

enddocument

Result is a one page document:

If you click on Explanation you get (if your pdf viewer support layers):

I tried to put some slides in the appendix, but it doesn't work on my compiler. If I add an appendix after the first compilation it works, probably because the navigation bar is not yet updated, but after a second compilation the appendix slides are shown in the navigation bar. Usually it is necessary to compile at least twice for updating crossreferences for example. Furthermore, if I use slide show mode of the Apple Preview application all slides, including the ones in the appendix, are shown in any case. Could you please help also me?