0. Run the python script list_reorder.py on a CSV-file to duplicate entries and add dummies to get a multiple of 4 badges (since 4 are printed on a page at a time). This has to be done in order to print the badges in duplex:
1. Set desired template/background (line 13, replace Badge_Helfer.pdf) and CSV-file (line 207, replace helfer_badges_duplex.csv) in badge.tex. The CSV-file has to be of the following form (the code has to be exactly 12 digits long):