This page is a collection of computer tools that I found helpful during my stay at the University of Basel.
Scientific posters can be printed at the IT services. They accept only PDF files that satisfy the PDF-X3 standard in order to ensure a successful printing process. However, if you use a presentation application or TeX to create your poster, these programs may not be able to export a PDF-X3 file directly.
A possible way to generate PDF-X3 files is to use commercial applications that allow you to save a PDF directly to the required format. Another way for linux users is to use a combination of ghostscript and pdftk to convert a PDF file to PDF-X3.
The following .tar archive contains a shell script that performs all the necessary steps for you. Except for minor changes and a bugfix, it is mostly based on a script written by A. Lode. To use it, unpack the .tar archive and install the packages ghostscript and pdftk using the package manager of your linux distribution. Type ./poster_convert.sh Name_of_the_poster.pdf and wait until a file Ready_to_print_X3_Name_of_the_poster.pdf has been generated.