Merge PDF files

Once in a while I have to merge a few PDF files to one PDF. After some searching I was successful using ghostscript.

For later reference:

gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile=merged.pdf infile1.pdf infile2.pdf

This solution and a lot of others: https://stackoverflow.com/questions/2507766/merge-convert-multiple-pdf-files-into-one-pdf