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From what I have gathered on the interwebs, I found that beamer gives no basic options to change the papersize. I am however in desperate need of exactly that. Mind that I don't want to re-scale one or more frames to an A4, I want to actually change the size of every frame.

Is there any way to work around this?


@JosephWright To keep it as short as possible: I need to end up with the different slides in PNG format. These png's have to be a certain size. I was planning on simply converting the pdf to png's like you could normally do with LaTeX, untill I found out the problem with resizing in beamer.

@ prettygully I have, but it seems like beamerposter puts all the frames on one page, what would make the conversion to PNG's impossible


@ Andrew Stacey Your answers solved my personal problem as I was unaware of aspect ratio and my own ratio happens to be incredibly close to 16/9. I will correct the dimensions during PNG conversion.

I am still interested if anyone can come up with a general answer to the question thought.

share|improve this question
beamer reduces the size of the "paper" in order to increase the effective font size. It is actually assumed that the PDF is zoomed to fullscreen or to the full paper size. To zoom it yourself check pgfpages (not to be confused with pdfpages, even if this might also be a way) – Martin Scharrer May 11 '12 at 6:35
you can change the aspect ratio; otherwise have a look at the beamerposter package – prettygully May 11 '12 at 7:01
It might be handy to know why you need to change the paper size in this way. – Joseph Wright May 11 '12 at 7:04
For the aspect ratio, see section 8.3 in the manual. – Loop Space May 11 '12 at 7:08
Regarding the edits: PDFs are scalable so can be converted to PNGs at any size without loss of detail. The conversion program should have options for specifying the resolution (sometimes called dpi). So you don't need to change the paper size for that (though you may want another aspect ratio). – Loop Space May 11 '12 at 7:32
up vote 6 down vote accepted

The class beamer uses the package geometry to setup the page dimension. The package geometry provides the command \geometry to set options in the preamble. So you can simple use:

share|improve this answer
\geometry{paper=a4paper} – Tarass May 28 '14 at 13:06

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