Fromattare correttamente beamerpost

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Buongiorno/notte

Ho scaricato un template per una presentazione su fogli A3. Sono riuscito a mettere il formato desiderato ma non riesco ad ottenere una formattazione corretta. Quello che per cui vorrei aiuto è:
– inserire due immagini nell’header, una tutta a sinistra e l’altra tutta a destra.
– Impostare il font dell’header e delle 3 colonne di una grandezza accettabile.
– Impostare i margini di stampa al massimo.
– impostare un footer minimo con i numeri di pagina sulla destra (non necessario)

Questo è il codice del file main dal quale poi richiamo ogni singola slide.

`\documentclass[final]{beamer}

%\usepackage[scale=1.24]{beamerposter} % Use the beamerposter package for laying out the poster
\usepackage{beamerposter}

\usetheme{confposter} % Use the confposter theme supplied with this template

\setbeamercolor{block title}{fg=ngreen,bg=white} % Colors of the block titles
\setbeamercolor{block body}{fg=black,bg=white} % Colors of the body of blocks
\setbeamercolor{block alerted title}{fg=white,bg=dblue!70} % Colors of the highlighted block titles
\setbeamercolor{block alerted body}{fg=black,bg=dblue!10} % Colors of the body of highlighted blocks
% Many more colors are available for use in beamerthemeconfposter.sty

\setbeamertemplate{headline}{
\leavevmode
\begin{columns}
\begin{column}{\linewidth}
\vskip1cm
\centering
\usebeamercolor{title in headline}{\color{jblue}
\Large % CHANGE this line for the size of the title
{\textbf{\inserttitle}}\\[0.5ex]}
\usebeamercolor{author in headline}{\color{fg}
\normalsize % CHANGE this line for the size of the author
{\insertauthor}\\[0.3ex]}
\usebeamercolor{institute in headline}{\color{fg}
\small % CHANGE this line for the size of the institut
{\insertinstitute}\\[1ex]}
\vskip1cm
\end{column}
\vspace{1cm}
\end{columns}
\vspace{0.1cm} % CHANGE this line for the space between your title and the horizontal rule
\hspace{0.5in}\begin{beamercolorbox}[wd=47in,colsep=0.15cm]{cboxb}\end{beamercolorbox}
\vspace{0.1in} % CHANGE this line for the space between your horizontal rule and your main body
}

%———————————————————–
% Define the column widths and overall poster size
% To set effective sepwid, onecolwid and twocolwid values, first choose how many columns you want and how much separation you want between columns
% In this template, the separation width chosen is 0.024 of the paper width and a 4-column layout
% onecolwid should therefore be (1-(# of columns+1)*sepwid)/# of columns e.g. (1-(4+1)*0.024)/4 = 0.22
% Set twocolwid to be (2*onecolwid)+sepwid = 0.464
% Set threecolwid to be (3*onecolwid)+2*sepwid = 0.708

\newlength{\sepwid}
\newlength{\onecolwid}
\newlength{\twocolwid}
\newlength{\threecolwid}
\setlength{\paperwidth}{41.98cm} % A0 width: 46.8in
\setlength{\paperheight}{29.7cm} % A0 height: 33.1in
\setlength{\sepwid}{0.024\paperwidth} % Separation width (white space) between columns
\setlength{\onecolwid}{0.27\paperwidth} % Width of one column
\setlength{\twocolwid}{0.464\paperwidth} % Width of two columns
\setlength{\threecolwid}{0.708\paperwidth} % Width of three columns
\setlength{\topmargin}{-1.5in} % Reduce the top margin size
%———————————————————–

\usepackage{graphicx} % Required for including images

\usepackage{booktabs} % Top and bottom rules for tables

%—————————————————————————————-
% TITLE SECTION
%—————————————————————————————-

\title{Data Communication using WebRTC}% Poster title

\author{Wasim Thabraze, Nuthi Mukund and Sami Ahmed} % Author(s)

\institute{Department of Computer Science, MVSR Engineering College} % Institution(s)

%—————————————————————————————-

\begin{document}

\addtobeamertemplate{block end}{}{\vspace*{2ex}} % White space under blocks
\addtobeamertemplate{block alerted end}{}{\vspace*{2ex}} % White space under highlighted (alert) blocks

\setlength{\belowcaptionskip}{2ex} % White space under figures
\setlength\belowdisplayshortskip{2ex} % White space under equations

\begin{frame}[t] % The whole poster is enclosed in one beamer frame

\begin{columns}[t] % The whole poster consists of three major columns, the second of which is split into two columns twice – the [t] option aligns each column's content to the top

%\begin{column}{\sepwid}\end{column} % Empty spacer column

\begin{column}{\onecolwid} % The first column

%—————————————————————————————-
% OBJECTIVES
%—————————————————————————————-

\begin{alertblock}{Abstract}

Using WebRTC we are trying to develop a product called 'Ping' used for audio, mult-video, file and screen sharing.
\begin{itemize}
\item Ping uses WebRTC for the source of data exchange and XMPP Server for signalling and transporting.
\item Ping works on Browser to Browser connections instead of naive client server approach.
\item Ping guarentees high scalability and upto 60\% more efficiency than existing systems.
\end{itemize}

\end{alertblock}

%—————————————————————————————-
% INTRODUCTION
%—————————————————————————————-

\begin{block}{Introduction}

\begin{itemize}
\item WebRTC is an upcoming standard that aims to improve real time communication among web browsers in peer to peer fashion.
\item Ping uses WebRTC which allows browsers to natively support interactive peer to peer communication and realtime collaboration.
\item Ping is a low cost highly efficient solution for data communication.
\item Ping improves the state of audio/video communication stack in the browser
\item Ping leverages the specification to achieve interoperability among web browsers.
\item Unlike existing systems, Ping doesn't require any plugins, extensions and signups.
\end{itemize}

\end{block}

%————————————————

%—————————————————————————————-

\end{column} % End of the first column

\begin{column}{\onecolwid} % The first column

%—————————————————————————————-
% OBJECTIVES
%—————————————————————————————-

\begin{alertblock}{Abstract}

Using WebRTC we are trying to develop a product called 'Ping' used for audio, mult-video, file and screen sharing.
\begin{itemize}
\item Ping uses WebRTC for the source of data exchange and XMPP Server for signalling and transporting.
\item Ping works on Browser to Browser connections instead of naive client server approach.
\item Ping guarentees high scalability and upto 60\% more efficiency than existing systems.
\end{itemize}

\end{alertblock}

%—————————————————————————————-
% INTRODUCTION
%—————————————————————————————-

\begin{block}{Introduction}

\begin{itemize}
\item WebRTC is an upcoming standard that aims to improve real time communication among web browsers in peer to peer fashion.
\item Ping uses WebRTC which allows browsers to natively support interactive peer to peer communication and realtime collaboration.
\item Ping is a low cost highly efficient solution for data communication.
\item Ping improves the state of audio/video communication stack in the browser
\item Ping leverages the specification to achieve interoperability among web browsers.
\item Unlike existing systems, Ping doesn't require any plugins, extensions and signups.
\end{itemize}

\end{block}

%————————————————

%—————————————————————————————-

\end{column} % End of the second column

%\begin{column}{\sepwid}\end{column} % Empty spacer column

\begin{column}{\onecolwid} % The third column

%—————————————————————————————-
% CONCLUSION
%—————————————————————————————-

\begin{block}{Conclusion}

\begin{itemize}
\item Though there are existing systems like Skype and Hangouts, Ping guarentees around 60\% more efficiency.
\item Ping also guarentees high scalability. Around 3000 users per second.
\item As WebRTC is leveraging communication, Ping uses WebRTC to improved end user experience.
\end{itemize}

\end{block}

%—————————————————————————————-
% ADDITIONAL INFORMATION
%—————————————————————————————-

%—————————————————————————————-
% REFERENCES
%—————————————————————————————-

\begin{block}{References}

\begin{itemize}
\item https://webrtc.org
\item https://mozilla.org/webrtc
\item https://github.com/webrtc
\end{itemize}

\end{block}

%—————————————————————————————-
% ACKNOWLEDGEMENTS
%—————————————————————————————-

%—————————————————————————————-
% CONTACT INFORMATION
%—————————————————————————————-

\setbeamercolor{block alerted title}{fg=black,bg=norange} % Change the alert block title colors
\setbeamercolor{block alerted body}{fg=black,bg=white} % Change the alert block body colors

\begin{alertblock}{Contact Information}

\begin{itemize}
\item Web: \href{http://www.pingapp.xyz}{http://www.pingapp.xyz}
\end{itemize}
\item wasim@thabraze.me

\end{alertblock}

%—————————————————————————————-

\end{column} % End of the third column

\end{columns} % End of all the columns in the poster

\end{frame} % End of the enclosing frame

\end{document}`

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